Question

a wall is built using bricks of dimensions 20cm×16cm×8cn.how many bricks will be required if the walls is 10m long,5m high,and 64cm thick

Answer 1

no of bricks required = volume of wall/ volume of each brick
                                 = 1000*500*64/ 20*16*8
                                 = 12500
12500 bricks will be req 

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Answer 2

Hope it helps..
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