The ages of two persons differ by 12 years. If 5 years ago, the elder one be 5 times as old as the younger one, their present ages (in years) are respectively
Select:  A) 20,20  B) 20,8  C) 25,15  D) 30,10  E) None of these
Explanation:   Let their ages be x and (x + 12) years.   5 (x - 5) = (x + 12 - 5) or 4x = 32 or x = 8.   Their present ages are 20 years and 8 years   Option 20,8
<result>B</result>
The ages of two persons differ by 12 years. If 5 years ago, the elder one be 5 times as old as the younger one, their present ages (in years) are respectively