Multiple choice

Present age of A is 52 years. 8 years hence, ages of A and B will be in the ratio 4 : 5. What is the present age (in years) of B?

  1. 67

  2. 75

  3. 72

  4. 60
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A's current age = 52. 8 years hence, A will be 60. Ratio A:B = 4:5. So 60/B_future = 4/5. B_future = 75. B's current age = 75 - 8 = 67.

AI explanation

In 8 years, A's age will be 52 + 8, which is 60 years. Given the ratio of A's to B's future age is 4 : 5, we have 60 divided by B's future age equaling 4 divided by 5. Cross-multiplying yields 4 times B's future age equals 300, so B's future age is 75. Subtracting the 8 years gives B's present age as 67 years.

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