Question

Find the volume of the concrete required to make steps of the given dimensions.

• A. 160 cu in
• B. 250 cu in
• C. 300 cu in
• D. 340 cu in

Answer 1

The correct option is C 300 cu in

The volume of concrete required to make the steps is the total volume of the steps.

Here,
Total volume = Volume of A + Volume of B

Volume of A = length x width x height
= 10 x 7 x 2
= 140 cu in

Volume of B = length x width x height
= 10 x 4 x 4
= 160 cu in

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ∴Volume of concrete needed = 160 + 70
= 230 cu in <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->