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primary 6 | Maths
| Speed
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Help please
Date Posted: 5 years ago
Views: 324
in 2.5+3 = 5.5h ,
lorry travels 60x5.5 = 330 km
to catch up, car must travel 330 km in 3h's time.
avg speed of car is 330/3 = 110 km/h
...
lorry travels 60x5.5 = 330 km
to catch up, car must travel 330 km in 3h's time.
avg speed of car is 330/3 = 110 km/h
...
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