Question
Quantitative Aptitude Question on Ratio and Proportion
The scores of Amal and Bimal in an examination are in the ratio 11 : 14. After an appeal, their scores increase by the same amount and their new scores are in the ratio 47 : 56. The ratio of Bimal's new score to that of his original score is
A
5:4
B
8:5
C
4:3
D
3:2
Answer
4:3
Explanation
Solution
The correct answer is (C):
Given, ratio of the scores of Amal and Bimal is 11 : 14.
Let 11x and 14x be the scores of Amal and Bimal.
Let a be the score which is increased.
ā 11x+a/14x+a = 47/56
616x+56a = 658x + 47a
9a = 42x
a = 42x/9
Required ratio = (14x+42x/9):14x
= (1+1/3):1
= 4:3