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Find the number of bricks, each measuring 24 cm x 12 cm x 8 cm, required to construct a wall 24 m long, 8m high and 60 cm thick, if 10% of the wall is filled with mortar?

19680
29650
38161
45000
Explanation:


Volume of the wall = (2400 x 800 x 60) cu. cm.

Volume of bricks = 90% of the volume of the wall

= ((90/100)* 2400 * 800 * 60) cm.

Volume of 1 brick = (24 x 12 x 8) cm.

bindu Number of bricks= (90/100)*(2400*800*60)/ (24*12*8)

= 45000.
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