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A boy constructed a big wall with dimensions 8m , 6m ,22.5m. Find out no of bricks required if brick has dimension 25cm , 11.25cm ,6 cm.

Posted by Rathi Kajal 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Naveen Sharma 7 years, 1 month ago

Ans. Volume of Wall = {tex}8\times 6\times 22.5 = 1080 m^3 {/tex}

=> {tex} 1080 \times 10^6 cm^3 {/tex}

Volume of Brick = {tex}25\times 11.25 \times 6 =1687.5 cm^3{/tex}

Number of bricks = {tex}Volume \space of \space Wall \over Volume \space of \space Brick{/tex}

=> {tex} {1080\times 10^6 \over 1687.5} = 64\times 10^4 {/tex}

1Thank You

ANSWER

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