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Question

Quantitative Ability and Data Interpretation Question on Pie Charts

ratio of yellow-eyed rats and grey-eyed hamsters is 5 : 72
If the ratio of yellow-eyed rats and grey-eyed hamsters is 5 : 72, what is the number of blue-eyed rats?

A

8

B

10

C

12

D

15

E

16

Answer

12

Explanation

Solution

For the rodents:
Let the number of rodents modified as rats be x.
Yellow-eyed rats : Grey-eyed hamsters = 5 : 72 = 0.25x : 300 - 0.15x
ā‡’ 1500 - 0.75x = 18x
ā‡’ x = 80
Number of blue-eyed rats = 15% of 80 = 12

So, the correct option is C.