Question

The present age of sahil's mother is three times the present age of sahil. After 5 years their ages will add to 66 years. Find their present ages

Answer 1

let present age of sahil is 'x'
    his mother age is '3x'
after five years
                        sahil's age is 'x+5'
                         his mother's age is '3x+5'
according to problem,                                      
                              given sum of their ages after five years is 66
                           ⇒(x+5)+(3x+5)=66
                              4x+10=66
                             4x=66-10
                             4x=56
                                x=56/4
                             x=14
sahil's age is  x=14=14 years
  sahil's mother age is 3x=3(14)=  42=42years

Answer 2

Let present age of Sahil is x
    His mothers age is 3x
ATQ  x+5+3x+5=66
         ⇒  4x=56
                 x=14
Sahil is 14 yr old at present.
 His mother is 3*14= 42 years