Emma left home at 5.25 a.m. and drove towards the theme park which was 750 km away. For the first 360 km, she was travelling at 60 km/h. Then she increased her speed by 5 km/h and completed the remaining journey.
- How long did she take for her whole journey?
- At what time did she reach the theme park?
(a)
Time taken to travel 360 km
= 360 ÷ 60
= 6 h
Distance of the remaining journey
= 750 - 360
= 390 km
Speed for remaining journey
= 60 + 5
= 65 km/h
Time taken to travel remaining journey
= 390 ÷ 65
= 6 h
Time taken to travel the whole journey
= 6 + 6
= 12 h
(b)
12 h after 5.25 a.m. = 5.25 p.m.
Answer(s): (a) 12 h; (b) 5.25 p.m.