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Percentage: Problem and Solution Part - 9
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Percentage different MBA examination problem and solution

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
An engineer by degree Mathematician by Heart. Having 23 years of teaching experience. 10% discount code BHARAT_GUPTA

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ans of question 1)a 2)c 3)d 4)b 5)b
how 480 came in last question
second question ka answer b hona chaiye, 625 is square of 25 and it is also 2500percent higher while 676 is 2600 percent higher .
Kapil shendre
a year ago
there is 2500% more means 1+2500/100=26 and its square is 676
4th question me 75 answer hoga
SR
Salman Rashid
a month ago
yes... it should be 75...
Sir in alloy question in 8:12 we know that the destroyed material dont change the ratio so why not just see that 12 kg of aluminium is present so it much be in ratio 7:4 where 4x corresponds to 12 hence we multiply 7 by 3 as the ratio multiplies by 3 and add both the values to get the required ans.Therefore the role of destroyed percentage can be neglected.Tell me if i am wrong
4 months ago
they are asking for the total weight required to make the statue. everytime you make a statue 17.5% gets destroyed and by your method we got 33 kg as final weight of the statue hence we need more than 33 kg material.. let x be the weight required to make 33 kg statue 7/40 gets destroyed therefore 33+(7/40)x =x therefore x is 40
sir please tell how 2500% became 26x?
Pranav Jain
2 years ago
if i say that x is 100% more of 100 then you will (add 100% of 100 + 100) which results in 200 or 200% or 100. Therefore when we add a percentage to something , it becames 100% + the added percent, which in this case is 100% + 2500%
Richa mishra
2 years ago
okkk thanks Pranav..
Kapil shendre
a year ago
if we say 20% more then we take 1+20/100=1+0.20=1.20 then for 2500% we take 1+2500/100=1+25=26
1. Percentage Problem Er. Bharat Gupta Having 20 years of teaching experience. Authored several books published by Pearson, Vikas, Unique publication etc Any query or suggestion, share your comments.

2. Forty percent of the employees of a certain company are men and 75 % of the men earn more than 25,000 per year. If 45% of the company's employees earn more than 25,000 per year, what fraction of the women employed by the company earn 25,000 or less per year? CAT Exam-1999] 2 3 b. C. d. 4 3 4

3. orty percent of the employees of a certain company are men and 75 % of the men earn more than 25,000 per of the women f 45% of the company's employees earn more than 25,000 per year, what fracti ye employed by the company earn 25,000 or l s per year? [CAT Exam 1999] 0 red

4. The square of a positive number is 2,500% greater than the number itself, then the square of that number is: a. 1762 C. 441 b. 625 d. 676

5. The square of a positive number is 2,500% greater than the number itself, then the square of that number is: a. 1762 c. 441 b. 625 d. 676 2.

6. In a library 60% of the books are Science stream, 60% of the remaining are Mathematics stream and rest of the books are of English. If there are 3600 books in English, then the total no. of books in Science are: a. 2400 c. 9000 b. 9600 d. 13500

7. In a library 60% of the books are of Science stream, 60% of the remaining are Mathematics stream and rest of the books are of English. If there are 3600 books in English, then the total no. of books in Science are: a. 2400 b. 9600 c. 9000 d. 13500 Sciau mal engedu 2 4 6 D l6 16360 6

8. In a test there are total m question. Mohit answers 20 out of 25 questions correctly in the first section. In the second section he answer 60% question correct and thus his total score is 66.66% in the test. Given that all the questions carry equal marks, without any negative marking. The total no. of question in the test is: a. 50 b. 60 c. 75 d. 100

9. In a test there are total m question. Mohit answers 20 out of 25 questions correctly in the first section. In the second section he answer 60% question correct and thus his total score is 66.66% in the test. Given that all the questions carry equal marks, without any negative marking. The total no. of question in the test is: a. 50 b. 60 C. 75 d. 100 aS 25 20 2 25 6o .2 3

10. An alloy contains the copper and aluminum in the ratio of 7:4. While making the statue from this alloy, 35 % of the alloy got destroyed. If there is 12 kg of aluminum in the statue, then the weight of the alloy required is: a. 48kg b. 40kg c. 37.5 kg d. 14.4 kg