Zoe left home at 9.50 a.m. and drove towards the theme park which was 983 km away. For the first 395 km, she was travelling at 79 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 395 km
= 395 ÷ 79
= 5 h
Distance of the remaining journey
= 983 - 395
= 588 km
Speed for remaining journey
= 79 + 5
= 84 km/h
Time taken to travel remaining journey
= 588 ÷ 84
= 7 h
Time taken to travel the whole journey
= 7 + 5
= 12 h
(b)
12 h after 9.50 a.m. = 9.50 p.m.
Answer(s): (a) 12 h; (b) 9.50 p.m.