Question

Karl can paint a wall at the rate of 78 square feet per hour. At this rate, how many hours will he need to paint a wall of 920 square feet?

Answer 1

To calculate the number of hours Karl will need to paint a wall of 920 square feet, we can use the formula:

Time = Area / Rate

where:

Area is the total area of the wall (920 square feet) and

Rate is the painting rate per hour (78 square feet per hour).

Plugging in the values, we have:

Time = 920 square feet / 78 square feet per hour

Calculating this division, we find:

Time ≈ 11.79 hours

Therefore, Karl will need approximately 11.79 hours to paint a wall of 920 square feet.