Transcript for:
Mathematics Review for Entrance Exam

Hello champions welcome to my youtube channel K2 enrichment. Dear students today we will discuss the mathematics and model paper file of the entrance exam of Odisha Adarshapit Right, today we will discuss the top selected question in this class. The question will be in your copy paste exam. Okay, the video that I am seriously preparing will be shown last time.

You will get a lot of new questions, you will get to know new concepts. I will also know the donut rig. So, if you are visiting my channel for the first time, please subscribe, like and share the video. Okay.

Today we will see the first question. The first question is, how many times will it be 3 times 4 if we mix 1 by 4? Let's see.

1 by 4 plus 1 by 4 plus 1 by 4. Did you see? If we mix 3 times, how many times will it be? Let's see.

If you have a lot of losses, then you can calculate the number of losses by the number of times you have to multiply the number of times. So, if you have 4 times 4, then you can calculate the number of times you have to multiply the number of times you have to multiply the number of times. So, if you have 4 times 4, then you can calculate How many? 3 Then the next question Yes, so the question is in both the Aurea medium and English medium So, we can see the difference between CBSP and Aurea medium Ok, so write in ascending order of the following fraction number So, we have to write in ascending or descending order What is ascending?

small is big, descending is big and small you will understand this question is written here but in the question also it is written small is big and small is small big and small are written in small ok descending is small descending is big and small how to solve this? if you ask the question how to know which is big and which is small first see in this question All the denominators are the same This is the same So, it is easy to find the small number It is not easy, we will not have to do much We will just have to see If all the denominators are the same The number above is the same The number below is the same The number is small. The number which is bigger is the number which is bigger. Why?

I am telling you the same thing. If the denominator is almost the same, the number which is small is the number which is bigger. That means, 5 by 17 is the number which is bigger. 10 by 17 is the number which is bigger. What is 5 by 17?

8 by 17. Then what is 9 by 17? So, we have written this order in the same order. 5x17,18x17,19x17,10x17 In this case,if your denominator is same,then all the small numbers are shown above and the big numbers are shown above In this case,we have done ascending order or small number order Now write the big number order in this way,then we will fast it 10x17,9x17 18 by 17, 5 by 17 You can also write the same number of questions and add the other number Let's see the question If the denominator of the word is different or the number is the same I will take the question I will see the answer of the question The answer is the answer of the question That is the correct answer of the question Then we can see the next question See the next question I wrote the descending order in the same way If you are descending, the number is big and small. See here, all the letters are the same.

See all the options. If you are in the middle of the number, write the number in the big and small. If you are doing the reviewer's question, all the letters are the same.

But here, all the letters are the same. Or the letters are the same. How do we know which one is big and which one is small?

Let's see which one is descending. Descending means big and small. Let's listen.

If the numerator is the same as the denominator, then the denominator will be greater than the denominator. 25, 27, 13, 19. So, the bigger number is 17 times 13. The bigger number is 17 times 25. The smaller number is 17 times 25. 17 by 13 is equal to 19 17 by 25 is equal to 17 by 30 17 by 30 is equal to 17 by 30 So, how do we write this? The total value of all the numbers is 17 by 30 So, what is the total value of all the numbers?

17 by 19 So, what is the total value of all the numbers? 17 by 25 So, what is the total value of all the numbers? 17 by 27 So, 17 by 13 which number is larger or larger? 17 by 27 is the number of numbers which is smaller or smaller?

Keep in mind the following case If the numerator is same then the denominator which is seen as small that number is actually larger Is it clear? But denominator or number in the previous question If the number of the same number is the same for every minute, then the number above that is actually the same. Did not understand this? So, we have to calculate it in this way. Otherwise, there will be no doubt.

Right? Now see the next calculation. The calculation is given. How? 6 by 7 is the total number.

Okay. If the total number is given, then the fraction is the same as the number above. So, let's see what will be the value of this. Ok, see.

6 by 7 is If I multiply 6 by 10, 7 by 10 is 10. See, how much will it be? If I multiply 6 by 10, it will be 60. If I multiply 7 by 10, it will be 70. So, this is the same thing. If we do this, we will get the value of the number of points. The answer is same.

The answer is 60 by 70. All are correct. If we cancel one of the four options, the value will be 6 by 7. This is 7 by 6. This is 24 by 35. So, it will not be equal. If you divide by 3 or 2, you will get the same answer. Because we need to divide by 3 or 6. So, if we divide by 6, we get 6. If we divide by 7, we get 7. So, we have 6 by 7. That is, we have D.

Clear? Let's see the next question. Yes.

Let's see the next question. I don't know if I will be able to do it. Let's see. I have given D.

I have given A. No. A value is 3, B value is 4, C value is 5 So, we have to calculate the value of 1 by A, 2 by B and 3 by C So, we have to calculate the value of 1 by A plus 2 by B minus 3 by C So, we have to write the value of 1 by A, 2 by B and 3 by C Now, we will put the C value in the same place.

So, what will happen? 1 by 3 plus 2 by B value is 4 minus 3 by C value is 5. Isn't it? So, we will solve it. Now, you will miss this. You will return the value of the previous value.

Do the same or else you will have to go to LCM 3, 4, 5 and solve the same. Now, we will calculate the value of Lcm. 12 times 3 is 4, so 4 is 4. 12 times 4 is 3, so 3 is 6. So, minus 3 by 5. Now, we will calculate the value of Lcm. 6 times 4 is 10, so 12 is 12. So, 10 times 12 is minus 3 by 5. Right?

In this way. 12 plus 5 is 60. Now, if 60 is 12, it is 5. 5 times 10 is 50. Minus 9 is equal to 12 and 3 times 12 is equal to 36 So, we will add 14 by 60 Now, we will add 7 by 36 So, the answer is option B Now, we will add the answer to the question Then the value of 1 by a, 2 by b, minus 3 by 0 is? So, we will solve the question by solving the answer in the following way. So, what is the right answer for option B?

This is a very important question. This type of question will be in your exam. Right? Then the next question.

Yes, look at the next question. You also had 10 tons of money. You had 2 parts of your stone in Bhavani Pakha or you had 10 stones in Bhavani Pakha. I gave you 10 stones. You had 2 parts of your stone in Bhavani Pakha or you had 1 part of your stone in Bhavani Pakha.

I told you that I will divide 10 stones into 2 parts. 5 stones. So where did you find these 5 stones in Bhavani Pakha?

So, the answer is, if you divide it into two parts, it is equal to 5. So, you are using the whole part of the number. fill up the blank space with the correct number of 4.5 and 0.2 multiply it and we will get the result multiply it again 4.5 to 0.2 multiply it again 2 to 5 is 10 2 to 8 is 9 multiply 0 to 5 multiply it again 0 is 4 and multiply by 0 0, 9 and 0 Now, I will give you a decimal point See, here is one number after point Here is one number after point Remember, the number you have after point You will give the point on the right side of that number That means, there is a double number So, you will give one or two You will give a decimal point instead of double So, I will write 0.90 Or if I don't write 0 on the right side, I will get 0.9 I have seen the code, I have written 0.90 If there is an option 0.9, then this is my right answer, there is no problem here No matter what you write, 0.09 or 9.00, this is the option I have written Clear? You don't understand the decimal multiplication of the game, right? Now, I am going to write the next question.

3 times 3 is equal to 1, minus 2 times 2 is equal to 1. Now, I am going to write the value. See, I have given the total fraction of the whole equation. Now, I am going to write the mixed fraction of the whole equation. Now, I am going to write the mixed fraction of the whole equation. But, first, I am going to convert the mixed fraction into the improper fraction.

Now, how can I convert it? See, 3 whole 1 by 4 minus 2 whole 1 by 2. How can I convert it? Now, I am going to write the next question.

4 times 3 is equal to 1 4 times 3 is equal to 12 So, we have 13 times 4 minus 2 times 4 is equal to 5 5 times 5 is equal to 2 5 times 5 is equal to 2 Now, we have to calculate the L-square L-square is equal to 4 4 times 4 is equal to 1 13 times 13 is equal to 13 minus 4 times 2 is equal to 2 5 times 2 is equal to 10 So, 13 times 10 is equal to 2 times 4 is equal to 3 3 by 4 That is the code answer Option C is the correct answer You understood? I gave you the mixed fraction So, we converted it into an improper And solved it Clear? Then, let's see the next question The value of 1.7 by 9 is what?

You have been asking this question all the time But, you didn't ask this question Maybe, you have done it before This is a special question, let's see Now, 1, 4, 7, 9. As you can see, this is a mixed fraction. How do we solve this? First, we convert this into an improved word How did we do it? 9 is 9, 9 is 7, so it is 9 So, we will give root over 9 Now, I know, 4 is 4, so it is root over That number will be equal to 12 4 is 12, so it is 4 9 is root over 9 So, we can't divide by 2, that is 3, that is 4 by 3. So, we can see that 4 by 3 is not enough. 16 by 9 root over is 4 by 3 That is 1 whole 1 by 3 Clear See, I have just done a mixed fraction And I have done it improperly That is 16 by 9 So, root over means I will write it again, if I want 16 root over with 9 root over 16 root over is 4 9 root over is 3 Clear or not?

then next question you can add it you can add 10 questions I will add 0.23 So, there is no problem if I add 0 after 8 I will add 0 after adding or calculating So, I will not add So, if I add 0 after 3, I will add 3 If I add 4, I will add 2 6 is 0.8 0 is 0, I have to calculate So, I will write So, 0.63 is the option. So, I have to write the answer. Clear? Then, the next question. What is the square root of 2 to the power 8?

So, 2 to the power 8 is not 2 to the power 8. So, 2 is not a whole number. So, we write 2 to the square or 2 to the cube. So, it means what? 2 is 2, 2 is 3, 2 is 3, 2 is 8, square root of 2 means like we wrote power as 8 power 2 square root means actually means that its value is 1 by 2 you didn't understand means suppose I say square square means 2 but square root means square root means 1 by 2 means For example, if we write 3R square or 4R square, then we can write 4R square root. How can we write this?

Or how can we write this sign or meaning? Now, 4R 1 by 2 is power 1 by 2. So, the value of 4R square root is the same as 4R power 1 by 2. That means, square root is 1 by 2. I have understood this. Clear? Now, we solve the question, what is the square root of 2 to the power 8? That means, 2 to the power 8 is 1 by 2. How?

Now, we write the formula. Now, see. I have already read the formula. Let's leave the formula. Now, let's write the formula.

this power is multiplied by 1 by 2 power bracket is same this power is multiplied by 2 to the power 80 multiplied by 1 by 2 If you cancel 2 to 8, you will get 4. So, the answer is 4 multiplied by 1 is 4. So, the power of 2 is 4. So, I said that the power is 2 divided by 4. So, 2 multiplied by 2 is 2. So, 4 divided by 4 is 4. 2 divided by 8 is 16. So, the answer is 16. That is all. So, I am going to write D. Is it clear?

It is a very important and selected question. Next question. What is the number of the decimal point of 3 by 4? I am going to write it in decimal.

It is nothing. 3 by 4 is 4. 3 by 4 is 4. The upper G will be the middle ring. 3 by 4. So, we will write 4 0 0 or 4 0 0. 3 is 3, so we will write a decimal here.

Decimal means, how much will it be? 0 will be 0. So, how much will it be? 4 7 8. So, how much?

If we write 38, it will be 2. So, there is a decimal here. So, how much will it be? It will be 0 automatically.

So, how much will it be? 4. 5 times 4 is 20 So, it is 0 So, the answer is 0.75 That is the option A is the answer Clear? Now, the next question The next question The value of 64 root over plus 36 root over By 64 root over minus 36 root over So, the answer is 64 root over plus 36 root over divided by 64 root over minus 36 root over Now, why do we call it root over? Because we have calculated the number of numbers by 12 We know that 8 is the number of numbers 8 square is 64, so we have to calculate the number of numbers by 8 minus 36, how do we calculate 36?

6 is 36, so we have to calculate 6 8 plus 6 is 8 How many? 6 is equal to 8 minus 6 8 plus 6 is equal to 8 8 plus 6 is equal to 14 8 plus 6 is equal to 2 14 plus 2 is equal to 7 That is option B Did you understand? Clear? Then we will see next question Next question All the units How many Km? How many mm?

1000m, gram, you can write it as 1000m or 1 by 1000 km or 0.001 km you can write it as 100cm or 10 mm or 10 kg or 10 hectogram 1 hectogram is 10 decagram 1 decagram is 10 gram 1 gram is 10 decigram 1 decigram is 10 centigram 1 centigram is 10 milligram Do you understand? If you remember all these units, you can write down the unit chain 1 kilogram is how many gram? You can write down the number of gram Then try to understand everything Okay, next question Look at the bottom I know that 1 liter is 1000 ml Suppose you have a house Then the oil will be 500 ml 500 ml is half a liter 1 liter is 1000 mm 500 ml is milliliter Then you will have 1000 ml Now I will write the question. Now I will write the question.

How many centimeters is equal to one kilometer? I know that the distance of one kilometer is 1000 meters. I know that the distance of one kilometer is 1000 meters. Now, I will make a meter.

How many cm is equal to 1 meter? 1 meter is equal to 100 cm How is it? See, I have written the format I am converting 1 km to cm Not meter If I am converting 1 km to 1000 m But I am converting 1 km to cm I am converting 1 km to meter phone will convert to centimeters that means where is the distance of the distance? 1000 meters phone will convert 1000 meters to centimeters that means where will the distance of centimeters be multiplied? it will be multiplied by 100 this 1000 will be multiplied by 100 why?

because we are coming in kilometers and centimeters what will happen if we come in kilometers and meters? it will be multiplied by 1000 only if we come in meters and centimeters it will be multiplied by 100 So, we are not making a 1 in a kilometer. We will multiply 1 by 1000 and the other by 100. Because we are not in this phase. So, we will write 1000 by 1000 and 100 by 100. Then, we will get 0. So, we will write 1000 by 100. If your value is 0,0, We will write all the zeros in the multiplier and give 1 to all of them See, these 3 zeros are equal to 5 zeros So, we will write 5 zeros in 1 Clear?

So, where is it? See, I will write the answer in the option C So, what did we multiply? We will say that 1 km or cm If we multiply km by meter, it will be 3 If we multiply meter by cm, it will be 100 So, the answer is A.

Clear? Then, next question. Find the fourth proportional of 4, 9 and 12. What is the fourth proportional? It is the ratio of the number of times you have to read the paper.

Or, it is the ratio of the number of times you have to read the paper. No questions asked. How is it written in the format?

Listen carefully. The format is A by B. 4th proportional formula is C by D 4 is first, second is 9, 12 is third but fourth is not there so we will put X as fourth now we will cross multiply so we will cross multiply so we will write 9 times 12 is 12 So, we have multiplied 4 x's If we divide it, what will be the value of x?

9 times 12 is 4 4 times 12 is 3 9 times 3 is 27 So, what is the value of x? It is 27 So, the answer is C Is it clear? I have done this before.

Some people have done it in 3rd or 4th proposal. I have done it all. Next question.

How many centimeters is equal to 1 meter? This is easy question. I know that 1 kilometer is equal to 1000 meters. I have given only meters. How many centimeters?

I am just saying it in a round way How many centimeters equal to 1 meter? 100 centimeters Simple, single line answer That is option C Right answer, clear How many centimeters equal to 1 meter? 100 centimeters We will come to this question in the exam Now, we will see the question Put the phone down, put the question down What will be Mean proportional of the term 9 and 16 Means I will divide it Means A by B equal to B by C Means the number given to us I gave first and second I will divide by third See how many are written No, 9 is written in this place I know where to write B in B place Ok, write B in this place Put 16 in C bank Now, multiply B by B 9 multiplied by 16 is not the same So, if we multiply by b, it will be 2b, b square If we multiply by b, it will be b square If we multiply by x, it will be x square If we multiply by b, it will be b square Equal to 9 multiplied by 16 is 14 So, b square is 14 So, if we multiply by b, it will be root over So, we have to write root of 648. A by B is equal to C by D That means we have given A, B and C We need D So we will export D Then we have given the number of pairs We have given the mean How will we write it? A by B is equal to B by C Don't you understand?

That means the pairs of A and B are same Clear? Then the next question is, You Pukhari's, sorry, You Pukhari's, hold 800 grams of fish, and you give the same amount of fish to 4 people, then they will lose weight in every part. Okay, so you are right, you will lose weight in the Pukhari's car.

But still, most of you will be like, you will buy fish, listen, Now, let's say you have a fish. Your fish is a big fish. Its weight is about 800 grams.

You can give it to 4 people. You can give it to your children, your children, your children, and your children. So, you can give it to 4 people equally. So, you can give it to 4 people equally.

If we take 800 grams of rice, we will get 400 grams of rice. But how will we divide it? We don't have any green. If we divide 800 kg of rice into 400 grams, how many people will be able to eat it? They will eat it in 2 kgs.

If we divide 800 into 4, it will not be 2, they will eat it in 2 kgs. Similarly, if we divide 800 grams into 4, they will eat it in 200 grams. So, we will have... So, the price of the whole packet of milk is about 70 rupees per packet. What is the price of one packet?

The price of one packet is 20. What is the price of 7 packets? The price of 20 into 7 is 140. That is the option C. Clear? Then the next question. What must be added to each term of the ratio 7 to 13 so that the ratio becomes 2 to 3?

Listen to the question carefully. I don't understand why people don't understand English I don't understand English I don't understand the language I don't understand English If you don't understand the question, then you should solve the problem So, we will add 7 to 13 How much will be the ratio? 2 to 3 7 to 13 means I will write 7 by 13 I will write the ratio of east to west 7 by 13 How much will I add here?

How much will I add here? 2 by 3 will be 80 See I will add 5 here and 5 here How much will I add here? 12 How much will I add here?

18 See 12 If I divide 12 by 6, it will be 2x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12x6, 12 One second, If I add 7 by 13, then what will be the ratio? It will be 2 by 3. 7 by 5 is 12. If you add 3 to 5, it will be 18. If you cancel it, it will be 2 by 3. That is 2 is to 3. Clear? How much will it be added?

Option A, that is 5. Right? Then, next question. Each bus fare is 50 per person. You travel 20 km per bus and give the conductor 100 rupees. How much will you pay for that?

But, the truth is, you will go today. You travel with your boss in the city of Kumanswati. I am telling you the truth. You travel with your boss.

It is fun to travel with your boss. Everyone else is going to the city of Kumanswati with their parents. But you travel with your boss. Ok, stop teaching me.

Ask me a question. Do you travel with your boss? Ok, tell me. You go out of your house and your parents'house. I go out of my house.

I don't come home. You are small, so you can't do anything. You can't even buy a house.

How far is the distance? 120 Km. Will you drive or ride a bus?

If you ride a bus for 1 Km, will you pay? You will pay 50 paise per Km. How much is it? 50 paise per Km.

If you have to travel 50 km, you have to help the conductor. If you have to travel 50 km, you have to help the conductor. So, if we multiply 1 by 50, we get the value of 100 multiplied by 60. If you convert this to 25, then you will convert this to 60. If you convert this to 60, then you will So, we have to calculate the cost of the system.

Let's go through it. I hope you liked the class. If you liked the class, please like, share and subscribe to the channel.

Thank you. Jai Jai Ram!