Gabby left home at 7.10 a.m. and drove towards the airport which was 922 km away. For the first 264 km, she was travelling at 88 km/h. Then she increased her speed by 6 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 264 km
= 264 ÷ 88
= 3 h
Distance of the remaining journey
= 922 - 264
= 658 km
Speed for remaining journey
= 88 + 6
= 94 km/h
Time taken to travel remaining journey
= 658 ÷ 94
= 7 h
Time taken to travel the whole journey
= 7 + 3
= 10 h
(b)
10 h after 7.10 a.m. = 5.10 p.m.
Answer(s): (a) 10 h; (b) 5.10 p.m.