The paint in a certain container is sufficient to paint an area equal to 9.375 m2. How
many bricks of dimensions 22.5 cm x 10 cm x 7.5 cm can be painted out of this
container?
Answers
Number of bricks that can be painted out of this container
= area that can be painted by the container/
surface area of bricks
Area that can be painted by the container = 9.375m²
= 9.375×(100)²cm²
= 9.375×(1000)cm²
= 93750cm²
Total surface area of one brick = 2(lb+bh+lh+)
= [2(22.5×10+10×7.5+22.5×7.5)]
= 2(225+75+168.75)cm²
= (2×468.75)cm²
= 937.5cm²
Number of that can be painted out of container
= area that can be painted by container/
surface area of bricks
= 93750/937.5
= 937500/9375
= 100
• therefore 100 bricks can be painted out by the paint of the qcontainer.
Hope its helpful for you