Question

A certain number of face masks are distributed among workers A, B and C in the ratio of 1:7:4.
Find the number of face masks B will get if A, B and C received 132 face masks in total.

Answer 1

Answer:

Hi there ! Answer is given below ! Hope it helps!

Explanation:

First , we will find the sum of the ratios

$1+4+7=12$

Now , we will calculate how many marks each one needs

We will first find how many masks A needs

We will use this formula :

Ratio / Sum of all parts * Number of masks

$\frac{1}{12} * 132 = 11$

A needs 11 masks

We will now calculate how many masks B needs

$7/12 * 132$

B needs 77 masks

We will now calculate how many masks C needs

$4/12 * 132$

C needs 44 masks