Linda left home at 9.45 a.m. and drove towards the city which was 854 km away. For the first 444 km, she was travelling at 74 km/h. Then she increased her speed by 8 km/h and completed the remaining journey.
- How long did she take for her whole journey?
- At what time did she reach the city?
(a)
Time taken to travel 444 km
= 444 ÷ 74
= 6 h
Distance of the remaining journey
= 854 - 444
= 410 km
Speed for remaining journey
= 74 + 8
= 82 km/h
Time taken to travel remaining journey
= 410 ÷ 82
= 5 h
Time taken to travel the whole journey
= 5 + 6
= 11 h
(b)
11 h after 9.45 a.m. = 8.45 p.m.
Answer(s): (a) 11 h; (b) 8.45 p.m.