Anna left home at 9.35 a.m. and drove towards the theme park which was 984 km away. For the first 462 km, she was travelling at 77 km/h. Then she increased her speed by 10 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 462 km
= 462 ÷ 77
= 6 h
Distance of the remaining journey
= 984 - 462
= 522 km
Speed for remaining journey
= 77 + 10
= 87 km/h
Time taken to travel remaining journey
= 522 ÷ 87
= 6 h
Time taken to travel the whole journey
= 6 + 6
= 12 h
(b)
12 h after 9.35 a.m. = 9.35 p.m.
Answer(s): (a) 12 h; (b) 9.35 p.m.