Erika left home at 8.30 a.m. and drove towards the theme park which was 866 km away. For the first 332 km, she was travelling at 83 km/h. Then she increased her speed by 6 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 332 km
= 332 ÷ 83
= 4 h
Distance of the remaining journey
= 866 - 332
= 534 km
Speed for remaining journey
= 83 + 6
= 89 km/h
Time taken to travel remaining journey
= 534 ÷ 89
= 6 h
Time taken to travel the whole journey
= 6 + 4
= 10 h
(b)
10 h after 8.30 a.m. = 6.30 p.m.
Answer(s): (a) 10 h; (b) 6.30 p.m.