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Question

What is the number of bricks, each measuring 25 cm × 12.5 cm × 7.5 cm required to construct a wall 6 m long, 5 m high, and 0.5 m thick, if mortar occupies 5% of the volume of the wall?

A
5740
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B
6080
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C
3040
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D
8120
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Solution

The correct option is B 6080
Number of bricks =95% of volume of wallVolume of a brick =0.95×600×500×5025×12.5×7.5=6080

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