how many bricks of length 18 cm breadth 10 cm height thickness 8 cm will be needed to build a Wall of length
12 m thickness 8 cm and height 2.4 m?
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C.S.A OF brick is 2(L+B)h
2(18+10)8 is 448
C.S.A OF wall is 2(L+B)h
2(12+0.08)2.4
0.480
NO. OF BRICKS is 448/.480 is 933.3 approximately
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