Question

age of mother is 4 times of her daughter five year hence mother age is 3 times of daughter

Answer 1

let present age of mother = x yrs
let present age of daughter=y yrs
x=4y
five year hence
x+5 ,y+5
x+5=3(y+5)
x+5=3y+15
x-3y=10
x-4y=0
- +. -
y=10
x=40