Glen took 15 min to jog from his home to his school. After that, he took 20 min to walk the same way home. His walking speed was 2 km/h slower than his jogging speed.
- Find Glen's jogging speed in km/h.
- How far was the school from his home?
(a)
Walk Time : Jog Time
20 : 15
4 : 3
Walk Speed : Jog Speed : Difference in speed
3 : 4 : 4 - 3
3 : 4 : 1
1 u = 2
4 u = 4 x 2 = 8
Glen's jogging speed = 8 km/h
(b)
60 min = 1 h
15 min =
1560 h =
14 h
Distance between the school and his home
=
14 x 8
= 2 km
Answer(s): (a) 8 km/h; (b) 2 km