Question

The sum of three numbers which are in tne ratio 2:5:7 is 28
Then the smallest number is --

Answer 1

4

Explanation:

Let the numbers be 2x,5x and 7x respectively.

2x+5x+7x=28

14x=28

x=28/14=2

Therefore the numbers are 2(2)=4,5(2)=10 and 7(2)=14

The smallest number is 4