medium · GMAT Quant
A production facility has two machines, M_1 and M_2. Machine M_1 produces 40 units per hour, and machine M_2 produces 60 units per hour. On a certain day, M_1 operated for t hours and M_2 operated for 8 hours.
If the average production rate for both machines combined during this period was 52 units per hour, what is the value of t?
- 4.0
- 4.5
- 6.0
- 7.2
- 5.3
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?