Erika left home at 5.25 a.m. and drove towards the theme park which was 888 km away. For the first 258 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 258 km
= 258 ÷ 86
= 3 h
Distance of the remaining journey
= 888 - 258
= 630 km
Speed for remaining journey
= 86 + 4
= 90 km/h
Time taken to travel remaining journey
= 630 ÷ 90
= 7 h
Time taken to travel the whole journey
= 7 + 3
= 10 h
(b)
10 h after 5.25 a.m. = 3.25 p.m.
Answer(s): (a) 10 h; (b) 3.25 p.m.