Question

A. Find out if the following numbers are in proportion:

a. 15.20,30,40

b. 1,2,2,4​

Answer 1

Answer:

1. 25 : 20 :: 30:40

5 : 4 :: 3 : 4

So it is not in proportion

2. 1 : 2 :: 2 : 4

1:2 :: 1 :2

So it is in proportion

Answer 2

We have to apply continued proportional property of ratio proportion here .