Quantitative Aptitude Ques 769

Question: The ratio of students in school A, B and C is 5: 4: 7, respectively. If number of students in schools are increased by 20%, 25% and 20% respectively, then what will be the ratio of students in school A, B and C, respectively?

[Syndicate Bank (Clerk) 2010]

Options:

A) 5: 5: 7

B) 30: 25: 42

C) 30: 20: 49

D) Cannot be determined

E) None of the above

Show Answer

Answer:

Correct Answer: B

Solution:

  • Here, ratio of students in school, A: B: C = 5: 4: 7 New ratio $ =5\times \frac{120}{100}:4\times \frac{125}{100}:7\times \frac{120}{100} $ $ =600:500:840 $ $ =30:25:42 $
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