A lorry travelled 84 km between two towns.
The first 60 km of road was untarred and the
avera...
Mathematics, 22.04.2021 01:00 xjuju1030
A lorry travelled 84 km between two towns.
The first 60 km of road was untarred and the
average speed over this part was
30 km/h. If the average speed for the whole
journey was 36 km/h, calculate the average
speed over the good part of the road.
Answers: 1
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