Question

The table below shows the different times it takes Paula to drive to her grandmother’s house depending on the rate at which she drives.

Rate vs. Time
Rate (mph)
30
40
50
60
Time (h)
2.5
1.875
1.5
1.25

If one day Paula rides a scooter to her grandmother’s house at a constant rate of 24 miles per hour, how long should it take her?
2.625 hours
2.75 hours
3.125 hours
3.75 hours

Answer 1

Distance is constant: 30·2.5 = 75 miles. At 24 mph time = 75/24 = 25/8 = 3.125 hours.

Answer: 3.125 hours.