How many bricks,each measuring 25, cm times 1 | vedclass

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(C) First,convert all dimensions to meters $(m)$: Wall dimensions: $10\, m$,$4\, dm = 0.4\, m$,$5\, m$. Volume of the wall $= 10\, m 	imes 0.4\, m

Vedclass · Accepted Answer

$6000$

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(C) First,convert all dimensions to meters $(m)$: Wall dimensions: $10\, m$,$4\, dm = 0.4\, m$,$5\, m$. Volume of the wall $= 10\, m 	imes 0.4\, m 	imes 5\, m = 20\, m^3$. Volume occupied by mortar $= \frac{1}{10} 	imes 20\, m^3 = 2\, m^3$. Volume to be occupied by bricks $= 20\, m^3 - 2\, m^3 = 18\, m^3$. Volume of one brick $= 0.25\, m 	imes 0.15\, m 	imes 0.08\, m = 0.003\, m^3 = \frac{3}{1000}\, m^3$. Number of bricks required $= \frac{	ext{Volume of bricks}}{	ext{Volume of one brick}} = \frac{18}{3/1000} = \frac{18 	imes 1000}{3} = 6000$.

How many bricks,each measuring $25\, cm \times 15\, cm \times 8\, cm$,will be required to build a wall $10\, m \times 4\, dm \times 5\, m$ if $\frac{1}{10}$ of its volume is occupied by mortar?

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