The ratio of the present ages of a father and son is 7 : 2. After 5 years, the ratio will be 4 : 1 (father : son, currently 35 and 10). What are their current ages?
Q1. The ratio of the present ages of a father and son is 7 : 2. After 5 years, the ratio will be 4 : 1 (father : son, currently 35 and 10). What are their current ages?
Answer: 28, 8
Explanation: Let's assume the common multiplier is 'x'. So, (7x + 5) / (2x + 5) = 4 / 1. Solving this gives x = 4, hence ages are 7x = 28 and 2x = 8.