A school room is to be built to accommodate 7 | vedclass

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(B) Given:Number of children = $70$Floor area per child = $2.2\, m^2$Volume per child = $11\, m^3$Length of the room $(l)$ = $14\, m$$1$. Calculation

Vedclass · Accepted Answer

$11\, m, 5\, m$

Vedclass · Answer

(B) Given:Number of children = $70$Floor area per child = $2.2\, m^2$Volume per child = $11\, m^3$Length of the room $(l)$ = $14\, m$$1$. Calculation of breadth $(b)$:Total floor area required = $70 	imes 2.2 = 154\, m^2$Since floor area = $l 	imes b$,we have:$14 	imes b = 154$$b = \frac{154}{14} = 11\, m$$2$. Calculation of height $(h)$:Total volume required = $70 	imes 11 = 770\, m^3$Since volume = $l 	imes b 	imes h$,we have:$14 	imes 11 	imes h = 770$$154 	imes h = 770$$h = \frac{770}{154} = 5\, m$Therefore,the breadth is $11\, m$ and the height is $5\, m$.

$A$ school room is to be built to accommodate $70$ children,so as to allow $2.2\, m^2$ of floor area and $11\, m^3$ of space for each child. If the room is $14\, m$ long,what must be its breadth and height?

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