Question: Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?
[A].16 years
18 years
28 years
24.5 years
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
Let Rahul’s age be x years.
Then, Sachin’s age = (x – 7) years.
x – 7 | = | 7 | |
x | 9 |
9x – 63 = 7x
2x = 63
x = 31.5
Hence, Sachin’s age =(x – 7) = 24.5 years.