How many bricks will be required to construct a wall 10 m long ,4dM wide and 3 m high. If each brick measures 25 cm × 12 cm ×8 cm.
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Answer:
wall
h=3m
l=10m
b=4
volume of cuboid(wall)
= h×l×b
= 3×10×4d
= 30×4d
= 120dsq.m
volume of cuboid(brick)
= 25×12×8 (given)
= 300×8
= 2400sq.m
v(wall)=v(brick)
120d=2400
d=2400/120
d=20
therefore 20 bricks are required to construct the wall
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