Linda left home at 8.25 a.m. and drove towards the theme park which was 615 km away. For the first 189 km, she was travelling at 63 km/h. Then she increased her speed by 8 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 189 km
= 189 ÷ 63
= 3 h
Distance of the remaining journey
= 615 - 189
= 426 km
Speed for remaining journey
= 63 + 8
= 71 km/h
Time taken to travel remaining journey
= 426 ÷ 71
= 6 h
Time taken to travel the whole journey
= 6 + 3
= 9 h
(b)
9 h after 8.25 a.m. = 5.25 p.m.
Answer(s): (a) 9 h; (b) 5.25 p.m.