Zoe left home at 6.25 a.m. and drove towards the theme park which was 906 km away. For the first 426 km, she was travelling at 71 km/h. Then she increased her speed by 9 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 426 km
= 426 ÷ 71
= 6 h
Distance of the remaining journey
= 906 - 426
= 480 km
Speed for remaining journey
= 71 + 9
= 80 km/h
Time taken to travel remaining journey
= 480 ÷ 80
= 6 h
Time taken to travel the whole journey
= 6 + 6
= 12 h
(b)
12 h after 6.25 a.m. = 6.25 p.m.
Answer(s): (a) 12 h; (b) 6.25 p.m.