1.

How many bricks, each measuring 50 cm x 25 cm x 12 cm, will be needed to build a wall measuring 16 mx 12 mx 45 cm ?(a) 4860 (c) 6320(b) 5760(d) 8120

Answer»

b) 5760 

no. of bricks 

= volume of wall/volume of bricks

n = 1600*1200*45/50*25*45 

[16m = 1600cm and 12m = 1200cm]

n = 5760



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