Question

What must be subtracted from each term of the ratio 4:7, so that the ratio becomes 2:5?a) -2 b) -1 c) 2 d) 1​

Answer 1

Step-by-step explanation:

4+x/7+x=2/5

By cross multiplication,

5(4+x) = 2(7+x)

20+5x= 14+2x

5x-2x= 14-20

3x= -6

x= -2

Option A