Question

Two no. Are in the ratio 4 :5 . The difference if their square 81 . Find the no.

Answer 1

Answer:

the no. is 3

Step-by-step explanation:

Let the no. be 4x and 5x

ATQ

(5x)^2 - (4x)^2 = 81

25^2 -16^2=81

9x^2= 81

x^2=81/9

x^2=9

x= √9

x= 3

hope it help u