A is 25 years younger than B. The age of B would be double the age of C after 15 years. The current age of B is three times the current age of C. What is the current age of A?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 20 years.
According to the question;
A = B - 25; (B + 15) = 2(C +15) ⇒ B = 2C + 15 ; B = 3C
So solving these three equations;
⇒ 3C = 2C + 15 ⇒ C = 15 years
B = 2C + 15 ⇒ B = 2 (15) + 15 ⇒ B = 45 years
A = B - 25 ⇒ A = 45 - 25 = 20 years