Question

the present age of kiran 's mother is six times the present age of kiran.after 5years the age of kiran will be one third of her mother at that time. find their present age

Answer 1

at present 
kiran age = x yr
his mother's age = 6x yrs

after 5 yrs
kiran age = (x+5) yrs
mother's age = (6x+5) yrs
given 
kiran age = (mother's age)/3

x+5 = (6x+5)/3
3(x+5) =6x +5
3x+15 = 6x+5
15-5 =6x-3x
10 =3x
x= 10/3 yrs
at present 
kiran age = x = 10/3 yrs
mother's age = 6x = 6*10/3 =20 years