Question

a solid stack measuring 20m by 15m by 6 m contains 1200000 bricks each 25 cm long and 6 cm thick. find the width of each brick.

Answer 1

hey friend your answer ⬇⬇↩

$volume \: of \: stack \\ = 20 \times 15 \times 6 \\ {1800m}^{3} \\ \\ let \: the \: width \: of \: brick \: be \: x \: \\ then \\ volume of \: the \: brick \\ = 25 \times 6 \times x \\ = 150x \\ \\ \\ \\ volume \: of \: tota \: brick \\ = 1200000 \times 150x \\ = 180000000 {cm}^{3} \\ \\ or \\ = 180 {m}^{3} \\ \\ (convert \: {cm}^{3} \: into \: {m}^{3} ) \\ \\ then \\ \\ \\ total \: volume \: of \: brick \: = volume \: of \: stack \\ \\ 180x = {1800} \\ \\ x = \frac{1800}{180 } \\ \\ x = 10 \\ \\ \\ \\ here \: wo \: got \: the \: width \: of \: the \: brick \: which \: is \: 10$m


(10 metre =100cm)