hard · GMAT Quant
A logistics company found that although their new routing software reduced total driver hours by 10%, the total fuel expenditure remained unchanged. The company spokesperson concluded that the new routes must be significantly less fuel-efficient per mile than the old routes.
Which of the following, if true, most seriously weakens the spokesperson’s conclusion?
- The price of fuel increased by 11% during the period the new software was implemented
- Drivers reported higher levels of satisfaction with the new routing software compared to the previous system
- The company recently replaced 5% of its fleet with newer, more fuel-efficient vehicles
- Total driver hours constitute the largest single operating expense for the logistics company
- Most of the reduction in driver hours came from avoiding traffic congestion rather than shorter distances
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?
- What is the final price of the jacket?
- How many total ways can the traveler get from City X to City Z?
- What is the speed of the current?
- Which of the following includes the number 0?
- If the child picks one letter at random, what is the probability that it is a consonant?
- Which of the following expressions must result in a positive value?
- Which of the following must also be an even integer?