Shannon left home at 8.25 a.m. and drove towards the theme park which was 668 km away. For the first 192 km, she was travelling at 64 km/h. Then she increased her speed by 4 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 192 km
= 192 ÷ 64
= 3 h
Distance of the remaining journey
= 668 - 192
= 476 km
Speed for remaining journey
= 64 + 4
= 68 km/h
Time taken to travel remaining journey
= 476 ÷ 68
= 7 h
Time taken to travel the whole journey
= 7 + 3
= 10 h
(b)
10 h after 8.25 a.m. = 6.25 p.m.
Answer(s): (a) 10 h; (b) 6.25 p.m.