Question

last week, your delivery runs took 7 hours 12 minutes on monday, 6 hours 46 minutes on wednesday, and 6 hours 53 minutes on friday. what was your average time for a delivery run?
a. 6 hours 46 minutes
b. 6 hours 53 minutes
c. 6 hours 57 minutes
d. 6 hours 59 minutes
e. 7 hours 10 minutes

Explanation:

Step1: Convert all times to minutes

• Monday: \(7\times60 + 12=432\) minutes
• Wednesday: \(6\times60+46 = 406\) minutes
• Friday: \(6\times60 + 53=413\) minutes

Step2: Find the total time

\(432+406 + 413=1251\) minutes

Step3: Calculate the average time

Since there are \(3\) delivery runs, the average time in minutes is \(\frac{1251}{3}=417\) minutes

Step4: Convert back to hours and minutes

\(417\div60 = 6\) hours and \(417-6\times60=57\) minutes

Answer:

C. 6 hours 57 minutes