Jane left home at 9.20 a.m. and drove towards the theme park which was 581 km away. For the first 305 km, she was travelling at 61 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 305 km
= 305 ÷ 61
= 5 h
Distance of the remaining journey
= 581 - 305
= 276 km
Speed for remaining journey
= 61 + 8
= 69 km/h
Time taken to travel remaining journey
= 276 ÷ 69
= 4 h
Time taken to travel the whole journey
= 4 + 5
= 9 h
(b)
9 h after 9.20 a.m. = 6.20 p.m.
Answer(s): (a) 9 h; (b) 6.20 p.m.