Question

6. Find the value of x-12:15 = 3 : x
3 find ratio and proportion

A) 3 3/4
B) 6
C)5
D)3 1/4
​

Answer 1

12:15 = 3:x

12/15 = 3/x

x = 3(15)/12

= 15/4 = 3 3/4