The ratio of present age of A and B is 2 : 3 . After 12 years the ratio of their ages will be 5 : 6 . What is B's present age ( in years ) ?
Answer & explanation
Correct answer: option 2
A : B
( given ) 2 : 3
Present age of A = 2x , Present age of B = 3X
After 12 years , age of A = 2x + 12 , age of B = 3x + 12
According to question ,
\(\frac{2x\; +\; 12}{3x\;+\;12}\) = \(\frac{5}{6}\)
12x + 72 = 15x + 60
3x = 12
x = 4
Present age of A = 2 × 4 = 8 , age of B = 3 × 4 = 12
B's age = 3 × 4 = 12 years