The present ages (in years) of A and B are in the ratio of 3: 4. Five years back, the ratio of their ages was 2: 3. What is the present age (in years) of A?
The present ages (in years) of A and B are in the ratio of 3: 4. Five years back, the ratio of their ages was 2: 3. What is the present age (in years) of A?
A और B की वर्तमान आयु (वर्षों में) का अनुपात 3 : 4 है। पाँच वर्ष पहले उनकी आयु का अनुपात 2 : 3 था। A की वर्तमान आयु (वर्षों में) कितनी है?
Detailed Solution & Logic
Correct Answer:
15
Let the present ages of A and B be $3x$ and $4x$.
Five years ago,
$\frac{3x-5}{4x-5}=\frac{2}{3}$
$9x-15=8x-10$
$x=5$
Present age of A
$=3x=3\times5=15$ years.
Answer: 15 years
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