Question

What number needs to be added to 5 and 3 so that the ratio of the first number to the second becomes 3:2?

Answer 1

7

Explanation:

x + 3 : x + 8 : : 2 : 3

(x + 3) \times 3 = (x + 8) \times 2 \\ 3x + 9 = 2x + 16 \\ 3x - 2x = 16 - 9 \\ x = 7 \\ x + 3 = 7 + 3 = 10 \\ x + 8 = 7 + 8 = 15 \\

10 : 15

2 : 3

Answer 2

+1 #

=5+1:3+1

=6:4

=3:2 #