Question

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Answer 1

first we have to find the volume of brick (cuboid)

formula- length ×breadth ×hieght

so,(25×12.5×7.5)cm power 3

=2343.75(cm power 3 )

now we have to find the volume of wall

wall is also cuboid

so,first we hav to convert m into cm

=[(15×100)×(1.8×100 )× 37.5]cm power 3

=10125000cm power 3

then we have to divide 10125000÷ 2343.75

=4320 bricks are need to make this wall

Answer 2

Step-by-step explanation:

Total volume:-

=15m×1.8m×37.5cm

=1500cm×180cm×37.5cm(1m=100cm)

=10,125,000cm^3

Volume of a brick:-

=25cm×12.5cm×7.5cm

=2,343.75cm^3

No.Of bricks required:-

10,125,000

―――――――― = 4320 bricks

2,343.75

(or)

1500×180×37.5

――――――――――― = 4320 bricks

25×12.5×7.5

*Hence, 4320 bricks can fit into the wall.

Hope it's help you