Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin? Select the correct option:
A) 23 B) 23.5 C) 24 D) 24.5 E) 25
Let the present ages of sachin and rahul be 7x and 9x   sachin is younger than rahul in 7 years   So 9x-7x=7   2x=7   x=3.5   Sachin;s age= 7x= 7*3.5= 
<gadget id="calculator">7*3.5</gadget>
<output>24.5</output>
24.5   answer :24.5
<result>D</result>
Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?