A respirator unit needs a rectangular floor space of 0.76 m by 1.2 m. How many units could be placed in a storeroom having $6\bar0 \mathrm {~m} ^ { 2 }$ of floor space?
A) 30
B) 68
C) 66
D) 33
E) 65

Question

Quizplus · Accepted Answer

First, we need to calculate the total floor space required for one unit:
$$0.76	ext{ m}	imes 1.2	ext{ m}=0.912	ext{ m}^2$$
Then, we can divide the total floor space of the storeroom by the floor space required for one unit:
$$\frac{60~\mathrm{m}^2}{0.912~\mathrm{m}^2}=65.79\approx 66$$
Therefore, the maximum number of units that can be placed in the storeroom is 66.

A Respirator Unit Needs a Rectangular Floor Space of 0 60ˉ m26\bar0 \mathrm {~m} ^ { 2 }60ˉ m2

A Respirator Unit Needs a Rectangular Floor Space of 0 $6\bar0 \mathrm {~m} ^ { 2 }$