Mathematics · Speed, Time and Distance
A bus covers the first half of a certain distance with speed v1 and the second half with a speed v2. The average speed during the whole journey is:
- 1v12 + v22v1 + v2
- 2v1v2v1 + v2
- 3v1 + v22
- 42v1v2v1 + v2✓
Correct answer
2v1v2v1 + v2
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