Rajeev's age after 15 years will be 5 times his age 5 years back. What is the present age of Rajeev?
Select the correct option
A) 5 years B) 10 years C) 20 years D) 25 years E) None
Solution   Let Rajeev's present age be x years. Then   Rajeev's age 15 years	= (x+15) years.   Rajeev's age 5 years back	= (x-5) years.   Therefore	‹=› x+15=5(x-5)   ‹=› x+15= 5x-25   ‹=› 4x=40   ‹=› x=10.   Answer 10 years
<result>B</result>
Rajeev's age after 15 years will be 5 times his age 5 years back. What is the present age of Rajeev?