Volumes Practice Test 2

Question : 21 of 40

Marks: +1, -0

A field is 150 m long and 100 m wide. A plot (outside the field) 50 m long and 30 m wide is dug to a depth of 8 m and earth taken out from the plot is spread evenly in the field. By how much is the level of the field raised?

5 dm
6 dm
7 dm
8 dm

Validate

Solution:

Here, 150 × 100 × h = 50 × 30 × 8
∴ h =

{50×30×8}/{150×100}

8/{10}

m = 8 dm

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