DISTANCE-TIME-SPEED Flashcards
1
Q
distance = ?
A
speed x time
2
Q
speed = ?
A
distance / time
3
Q
Time = ?
A
Distance / Speed
4
Q
A boy walks at a speed of 4 kmph. How much time does he take to walk a distance of 20 km?
A
Time = Distance / speed
= 20/4 = 5 hours.
5
Q
A cyclist covers a distance of 15 miles in 2 hours. Calculate his speed.
A
Speed = Distance/time
= 15/2 = 7.5 miles per hour.
6
Q
A car takes 4 hours to cover a distance, if it travels at a speed of 40 mph. What should be its speed to cover the same distance in 1.5 hours?
A
Distance covered = 4 x 40 = 160 miles
Speed required to cover the same distance in 1.5 hours = 160/1.5 = 106.66 mph
