Jaslyn left home at 6.25 a.m. and drove towards the theme park which was 1056 km away. For the first 516 km, she was travelling at 86 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 516 km
= 516 ÷ 86
= 6 h
Distance of the remaining journey
= 1056 - 516
= 540 km
Speed for remaining journey
= 86 + 4
= 90 km/h
Time taken to travel remaining journey
= 540 ÷ 90
= 6 h
Time taken to travel the whole journey
= 6 + 6
= 12 h
(b)
12 h after 6.25 a.m. = 6.25 p.m.
Answer(s): (a) 12 h; (b) 6.25 p.m.