how many brickseach 25cm long 10cm wide and 7.5 cm thik will be required for a wall 15m long 25 m high and 1.25 m thjk
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let n be the number of bricks required to build the wall .
then,
n *vol of brick=vol of wall
n*25*10*7.5=1500*2500*125. (1m=100cm)
n=1500*2500*125/25*10*7.5
n=250000
so number of bricks is250000
then,
n *vol of brick=vol of wall
n*25*10*7.5=1500*2500*125. (1m=100cm)
n=1500*2500*125/25*10*7.5
n=250000
so number of bricks is250000
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