Jen left home at 5.30 a.m. and drove towards the theme park which was 680 km away. For the first 248 km, she was travelling at 62 km/h. Then she increased her speed by 10 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 248 km
= 248 ÷ 62
= 4 h
Distance of the remaining journey
= 680 - 248
= 432 km
Speed for remaining journey
= 62 + 10
= 72 km/h
Time taken to travel remaining journey
= 432 ÷ 72
= 6 h
Time taken to travel the whole journey
= 6 + 4
= 10 h
(b)
10 h after 5.30 a.m. = 3.30 p.m.
Answer(s): (a) 10 h; (b) 3.30 p.m.