Respuesta :
Answer:
4 is the right answer
Step-by-step explanation:
let the present age be 5x and 7x
after four years rahuls age = 5x + 4
haroons age =7x +4
=5x + 4 + 7x + 4
=56
=12x +8 =56
=12x =48
x = 4
Answer:
4 is the right answer
Step-by-step explanation:
let the present age be 5x and 7x
after four years rahuls age = 5x + 4
haroons age =7x +4
=5x + 4 + 7x + 4
=56
=12x +8 =56
=12x =48
x = 4