Question

A wall is to be built using bricks of dimensions 20 cm × 16 cm × 8 cm. how many bricks will be required if the wall is 10 m long, 5 m high and 64 cm thick ?
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Answer 1

Answer:

==》12500 Bricks.

Step-by-step explanation:

A wall is to be built using a bricks of

dimensions 20×16×8 cm.

Given

• Length of brick=20 cm
• Breadth of brick=16 cm
• Height of brick= 8 cm

.°. Volume of each brick=l×b×h.

=(20×16×8) cm³

Now

• Length of wall=10m= 1000 cm.
• Breadth of wall=5m= 500 cm.
• Height of wall=64 cm

.°. volume of wall=l×b×h

=(1000×500×64) cm ³

So, No. of brick required to build the wall

$\frac{volume \: of \: wall}{volume \: of \: each \: brick} = \frac{1000 \times 500 \times 64}{20 \times 16 \times 8} \\ = 12500$

Answer=12500 bricks