Question

a pit 2m×1.5m×80m.was dug.the dug out earth was evenly spread at 15cm height on a platform 12.5m long.find the width of the platform?

Answer 1

volume of (cuboidical) pit=2m×1.5m×80m
=240
platform:
height=15cm=0.15m
length=12.5m
width=?

volume of platform= volume of pit
0.15×12.5×w=240
1.875×w=240
w=240÷1.875
w=128m

Answer 2

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