Simon took 15 min to jog from his home to his school. After that, he took 30 min to walk the same way home. His walking speed was 4 km/h slower than his jogging speed.
- Find Simon's jogging speed in km/h.
- How far was the school from his home?
(a)
Walk Time : Jog Time
30 : 15
2 : 1
Walk Speed : Jog Speed : Difference in speed
1 : 2 : 2 - 1
1 : 2 : 1
1 u = 4
2 u = 2 x 4 = 8
Simon'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
= 4 km
Answer(s): (a) 8 km/h; (b) 4 km