Question

Sammy is planning to renovate the staircase. What area of the carpet will be needed to cover the stairs?

• A. $1660$ sq in
• B. $1720$ sq in
• C. $1680$ sq in
• D. $1620$ sq in

Answer 1

The correct option is C $1680$ sq in

Total surface area $=3\times (40\times 8)+3\times (40\times 6)$
$=960+720$
$=1680$ sq in
The area of the carpet needed to cover the stairs is $1680$ sq in.