Question

Two numbers are in ratio 4:5 . If 5 is added to each number the ratio becomes 13:16 . Find the numbers?

Answer 1

First no be 4x and second be 5x

(4x+5)/(5x+5)= 13/16

16(4x+5)= 13(5x+5)

{ by cross multiplication)

64x+80= 65x+65

x =15

First no = 4x = 4×15=60

Second no = 5x = 5×15=75