Question

What should be subtracted from each number of the ratio 4:9, to make it 9:4?​

Answer 1

Answer:

Let the number = x

A.T.Q. :-

(4-x)/(9-x) = 9/4

    Cross multiply

9(9-x) = 4(4-x)

81-9x = 16-4x

81-16 = 9x-4x

5x = 65

x = 65/5

x = 13

Therefore; The number is 13

Step-by-step explanation: