Sachin is seven years younger than Rahul. What is Sachin's age if their ages are in the ratio of 7 to 9?
A. 16 years
B. 18 years
C. 28 years
D. 24.5 years
Answer:D
Sachin is seven years younger than Rahul. What is Sachin's age if their ages are in the ratio of 7 to 9?
A. 16 years B. 18 years C. 28 years D. 24.5 years
Explanation: Let's say Rahul is x years old.Sachin's age is then (x - 7) years.7/9 = x − 7/x,7x = 9x - 63,63 = 2x,31.5 = x,Sachin's age is thus =(x - 7) = 24.5 years.