Anna left home at 7.50 a.m. and drove towards the theme park which was 1003 km away. For the first 450 km, she was travelling at 75 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 450 km
= 450 ÷ 75
= 6 h
Distance of the remaining journey
= 1003 - 450
= 553 km
Speed for remaining journey
= 75 + 4
= 79 km/h
Time taken to travel remaining journey
= 553 ÷ 79
= 7 h
Time taken to travel the whole journey
= 7 + 6
= 13 h
(b)
13 h after 7.50 a.m. = 8.50 p.m.
Answer(s): (a) 13 h; (b) 8.50 p.m.