If the quoted estimate for 15 hours of mechanical labor was $1087.50, the actual cost of 13.5 hours is

If the quoted estimate for 15 hours of mechanical labor was $1087.50, the actual cost of 13.5 hours is

• A. $72.50 per hour
• B. $85.50 per hour
• C. $60.50 per hour
• D. $90.00 per hour

Answer: (A)

The main idea is to find the hourly rate from the quoted total and hours, then apply that same rate to the actual hours. Divide the quoted amount by the quoted hours: 1087.50 ÷ 15 = 72.50. So the labor rate is 72.50 per hour. That rate would be used for any amount of hours, including 13.5 hours, which would cost 13.5 × 72.50 = 978.75. Since the choices present the hourly rate, the correct option is 72.50 per hour. Using any other rate would not match the original 1087.50 for 15 hours.

The main idea is to find the hourly rate from the quoted total and hours, then apply that same rate to the actual hours.

Divide the quoted amount by the quoted hours: 1087.50 ÷ 15 = 72.50. So the labor rate is 72.50 per hour. That rate would be used for any amount of hours, including 13.5 hours, which would cost 13.5 × 72.50 = 978.75. Since the choices present the hourly rate, the correct option is 72.50 per hour. Using any other rate would not match the original 1087.50 for 15 hours.