Question

How many bricks each measuring 25 cm* 12.cm*7.5 cm will be needed to construct A wall 15 m long, 1.8 m high and 37.5 CM thick

Answer 1

$Required \: number \: of \: bricks \: = \frac{1500 \times 180 \times 37.5}{25 \times 12 \times 7.5} \\ = \frac{10125000}{2250} = 4500$