Question

a mass of 40kg is divided into three portions in the ratio of 3:4:8

Answer 1

Total mass = 40kg

Let the first part = 3x

2nd part = 4x

3rd part = 8x

Now, According to question,

3x+4x+8x = 40kg

= 15x = 40kg

x = 40/15= 2.6

First portion = 3x = 2.6×3= 7.8kg

2nd portion = 4x = 2.6×4 = 10.4kg

3rd portion = 8x = 2.6×8= 20.8kg

Therefore, three parts are 7.8kg,10.4kg,20.8kg respectively

HAVE A HAPPY LIFE!