How many bricks are required to construct a wall of length 2 m, breadth 20 cm and height 1 m.

100

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200

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300

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400

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Solution

The correct option is D 400
Volume of wall = 2 m x 20 cm x 1 m
= 200 cm x 20 cm x 100 cm
Volume of a brick = 20 cm x 10 cm x 5 cm
No. of bricks = $\frac{200 x 20 x 100}{20 x 10 x 5}$ = 400

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How many bricks are required to construct a wall of length 2 m, breadth 20 cm and height 1 m.

The correct option is D 400Volume of wall = 2 m x 20 cm x 1 m = 200 cm x 20 cm x 100 cm Volume of a brick = 20 cm x 10 cm x 5 cm No. of bricks = 200x20x10020x10x5 = 400

The correct option is D 400
Volume of wall = 2 m x 20 cm x 1 m
= 200 cm x 20 cm x 100 cm
Volume of a brick = 20 cm x 10 cm x 5 cm
No. of bricks = $\frac{200 x 20 x 100}{20 x 10 x 5}$ = 400