Tiffany left home at 8.40 a.m. and drove towards the theme park which was 548 km away. For the first 198 km, she was travelling at 66 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 198 km
= 198 ÷ 66
= 3 h
Distance of the remaining journey
= 548 - 198
= 350 km
Speed for remaining journey
= 66 + 4
= 70 km/h
Time taken to travel remaining journey
= 350 ÷ 70
= 5 h
Time taken to travel the whole journey
= 5 + 3
= 8 h
(b)
8 h after 8.40 a.m. = 4.40 p.m.
Answer(s): (a) 8 h; (b) 4.40 p.m.