The ages of two siblings are in the ratio 3 : 5, and their ages add up to 64. How old is the older sibling?

Correct answer: D. 40 years old

There are 3 + 5 = 8 parts, each worth 64 ÷ 8 = 8 years. The older sibling has 5 parts: 40 years. The younger is 24. Check: 24 + 40 = 64 and 24 : 40 simplifies to 3 : 5.

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Answer and explanation

The correct answer is D. 40 years old

There are 3 + 5 = 8 parts, each worth 64 ÷ 8 = 8 years. The older sibling has 5 parts: 40 years. The younger is 24. Check: 24 + 40 = 64 and 24 : 40 simplifies to 3 : 5.

Topic: Age and Number Problems MCQs · Subject: Numerical Ability