Jack took 10 min to jog from his home to his school. After that, he took 15 min to walk the same way home. His walking speed was 2 km/h slower than his jogging speed.
- Find Jack's jogging speed in km/h.
- How far was the school from his home?
(a)
Walk Time : Jog Time
15 : 10
3 : 2
Walk Speed : Jog Speed : Difference in speed
2 : 3 : 3 - 2
2 : 3 : 1
1 u = 2
3 u = 3 x 2 = 6
Jack's jogging speed = 6 km/h
(b)
60 min = 1 h
10 min =
1060 h =
16 h
Distance between the school and his home
=
16 x 6
= 2 km
Answer(s): (a) 6 km/h; (b) 2 km