Sachin is younger than Rahul by 4 years. If their ages are in the respective ratio of 7:9, how old is Sachin? Choose the correct option.
A) 24.9	B) 24.6	C) 24.2	D) 24.8	E) 24.5
Let Rahul's age be x years.   Then, Sachin's age = (x - 7) years.   (x - 7)/x = 7/9   2x = 63 =&gt; x = 31.5   Hence, Sachin's age = (x - 7) = 24.5 years.   Answer: 24.5
<result>E</result>
Sachin is younger than Rahul by 4 years. If their ages are in the respective ratio of 7:9, how old is Sachin?