A car takes 60.0 minutes to travel 100 km.During this one-hour trip,the car stops for 5 minutes to get gas.The speed limit on the road that the car traveled on is 100 km/hr.Which of the following statements is true?
A)The car never exceeded the speed limit during this trip.
B)The car must have exceeded the speed limit at some point during this trip.
C)There is not enough information to determine whether the car exceeded the speed limit during this trip.
D)The car's speed was 100 km/hr during the whole trip.

Question

Quizplus · Accepted Answer

Since the car takes 60 minutes to travel 100 km and it also stopped for 5 minutes to get gas, the total time taken by the car was 65 minutes. To cover the 100 km distance in 65 minutes, the car would need to have an average speed of (100/65) km/min or approximately 92 km/hr. Therefore, the car must have exceeded the speed limit of 100 km/hr at some point during this trip.

A Car Takes 60