Crackgmat.com Ques#8 on Ratio

cliou21 · Posted: Wed May 14, 2008 12:20 pm Post subject: Crackgmat.com Ques#8 on Ratio

This is an easy one, but to me, the answer is A, instead of D. Ratio is r:s which to me is 35:25 (A). Can someone explain this better?

Question # 8
35 % of Ram’s income is equal to 25% of Sita’s income. The ratio of their incomes is:

(A) 7:5

(B) 4:3

(C) 4:7

(D) 5:7

(E) 3:4

Your Answer : A
Actual Answer : D

Explanation provided by Crackgmat.com
Let Ram’s income be R and Sita’s income be S

We have, (35/100)R = (25/100)S

Hence R/S = 25/35 = 5/7.

Hence (D) is the correct answer.

aatech · Posted: Wed May 14, 2008 12:46 pm Post subject:

Ans should be D.. Question mentions Ram first and then Sita.. that means we need to calculate Ram's income (R) to Sita's Income (S) ratio..

35*R/100 = 25*S/100

R/S = 25/35 = 5/7

netigen · Posted: Wed May 14, 2008 12:57 pm Post subject:

Another way to confirm your answer is:

Since 35% of Rams income = 25% of Sita's income it means that

Ram's income < Sita's income

which means Ram's income/Sita's income will be < 1