Question

IUL UNUSUNUL
13. The paint in a certain container is sufficient to paint an area equals to 17:25 m². How many
bricks of dimension 10 cm x 45 cm x 7.5 cm can be painted out of this container ?
It has one door 3 m X 1.4 m and three​

Answer 1

Answer:

surface area of a cuboid is equal to

2(lb+bh+hl)

i.e

2(10*45+ 45*7.5 +10*7.5(

2(450+337.5+75)

2(862.5 square cm )

2(8.625 sq metre

17.25 metre square.

thus surface area of one brick is equal to the volume of paint in container.

thus only 1 brick can be painted out of given paint.