Eva left home at 6.30 a.m. and drove towards the theme park which was 850 km away. For the first 498 km, she was travelling at 83 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 498 km
= 498 ÷ 83
= 6 h
Distance of the remaining journey
= 850 - 498
= 352 km
Speed for remaining journey
= 83 + 5
= 88 km/h
Time taken to travel remaining journey
= 352 ÷ 88
= 4 h
Time taken to travel the whole journey
= 4 + 6
= 10 h
(b)
10 h after 6.30 a.m. = 4.30 p.m.
Answer(s): (a) 10 h; (b) 4.30 p.m.