Victoria left home at 7.10 a.m. and drove towards the airport which was 1014 km away. For the first 450 km, she was travelling at 90 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 airport?
(a)
Time taken to travel 450 km
= 450 ÷ 90
= 5 h
Distance of the remaining journey
= 1014 - 450
= 564 km
Speed for remaining journey
= 90 + 4
= 94 km/h
Time taken to travel remaining journey
= 564 ÷ 94
= 6 h
Time taken to travel the whole journey
= 6 + 5
= 11 h
(b)
11 h after 7.10 a.m. = 6.10 p.m.
Answer(s): (a) 11 h; (b) 6.10 p.m.