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Question
Rain falls on a rectangular roof 28 m by 9 m and the water flows into a tank of dimensions 90 m by 70 cm by 84 cm. How much rainfall will fill the tank completely?
Sum
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Solution
Dimensions of the tank:
length = 90m
breadth
= 70cm
= 0.7m
height
= 84cm
= 0.84m
Amount of rainfall
= `"Volume of rank"/"Area of roof"`
= `(90 xx 0.7 xx 0.84)/(28 xx 9)`
= 0.21m
= 21cm
∴ Amount of rainfall is 21cm.
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Flow of Water ( or any other liquid )
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