Question

The concrete is to be made of cement, sand, and gravel in the ratio of 1 : 2 : 3. If the mixer takes 30 shovelfuls, how many shovelfuls of sand is needed?

Answer 1

10 shovels

Explanation:

let mixtures be x, 2x and 3x respectively.

x+2x+3x=30

x=5

sand=2X=10