Question:
If the ratio of yellow-eyed rats and grey-eyed hamsters is 5 : 72, what is the number of blue-eyed rats?
If the ratio of yellow-eyed rats and grey-eyed hamsters is 5 : 72, what is the number of blue-eyed rats?
Updated On: Jan 27, 2024
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The Correct Option is C
Solution and Explanation
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
⇒ 1500 – 0.75x = 18x
⇒ x = 80
Number of blue-eyed rats = 15% of 80 = 12
So, the correct option is C.
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