The paint in a container is sufficient to paint an area equal to 9.375 $$m^2$$​, How many bricks, each measuring $$22.5 cm \times 10 cm \times 7.5 cm$$​ can be painted with the paint in the container?

Correct option is C

Given:
paint an area equal to 9.375 m$$^2$$​​
many bricks, each measuring 22.5 cm x 10 cm x 7.5 cm
Formula used :
Total surface area of one brick = 2(lb + bh + lh)
Solution:
​$$= [2(22.5 \times10 + 10 \times 7.5 + 22.5 \times 7.5)] cm² \\\ \\= 2(225 +75 + 168.75) cm²\\\ \\= (2 \times 468.75) cm² \\\ \\= 937.5 cm²$$    ​
Let n bricks can be painted out by the paint of the container.
Area of n bricks = $$(n \times 937.5) cm² = 937.5n \ cm²$$​​
Area that can be painted by the paint of the container = 9.375 m² = 93750 cm$$^2$$​​
93750 =  937.5n
n = 100
Therefore, 100 bricks can be painted out by the paint of the container.