Question

if the ratio of two numbers is 7:2 and the bigger of the two numbers is 21 what is the smaller number​

Answer 1

We are given, Ratio is 7:2 and bigger is 21

Let smaller be x

so, 21/x = 7/2

so, x = 6

Answer 2

Ratio of two numbers= 7:2
=7x & 2x
bigger number of the two numbers is 21
7x + 2x + 21 = 180
9x = 180 - 21
9x = 159
x = 159/9
x = 1.766