Question

The volume of a wall , which is 5 times as high as it is broad and 8 times as long as it is high , is 12.8 m3 . Find the breadth .

Answer 1

40 cm

Let the breadth of the wall be x metres.

Then,

Height = 5x metres and Length = 40x metres. x * 5x * 40x = 12.8 x3 =12.8/200 = 128/2000 = 64/1000 So, x = (4/10) m = ((4/10)*100)cm = 40 cm

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