Question
Download Solution PDFRatio between the present ages of A and B is 2 ∶ 3, respectively. After 5 years, the ratio between their ages will be 3 ∶ 4. What is B's age at present?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Ratio between the present ages of A and B is 2 ∶ 3
After 5 years the ratio of their ages will be 3 ∶ 4.
Calculation:
Let the present age of A and B be 2x and 3x
According to the question,
\(\frac{2x +5}{3x + 5} = \frac{3}{4}\)
⇒ 8x + 20 = 9x + 15
⇒ 20 - 15 = 9x - 8x
⇒ x = 5
So, the present ages of B = 3 × 5
⇒ 15 years
∴ B's age at present is 15.
Last updated on Jun 13, 2025
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