How many bricks, each measuring $25 c m \times 11.25 c m \times 6 c m$ will be needed to build a wall $8 m \times 6 m \times 22.5 c m$ ?

5600

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6000

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6400

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7200

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Solution

The correct option is A $6400$
Number of bricks $= \frac{V o l u m e o f w a l l}{V o l u m e o f 1 b r i c k}$

$= \frac{800 \times 600 \times 22.5}{25 \times 11.25 \times 6}$ .... $(1 m = 100 c m)$

$= 6400.$

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Similar questions

How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8m x 6m x 22.5 cm?

25 c m \times 11.25 c m \times 6 c m

8 m \times 6 m \times 22.5 c m

How many bricks, each measuring 25 cm $\times$ 11.25 cm $\times$ 6 cm, will be needed to build a wall 8 m long, 6 m high and 22.5 cm thick?

(a) 5600

(b) 6000

(d) 7200

8 m \times 6 m \times 22.5 c m

25 c m \times 11.25 c m \times 6 c m

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