A car covers four successive three km stretches at speeds of 10 km/hr, 20…
2026
A car covers four successive three km stretches at speeds of 10 km/hr, 20 km/hr, 30 km/hr and 60 km/hr respectively. Its average speed over this distance :
- A.
10 km/hr
- B.
20 km/hr
- C.
30 km/hr
- D.
25 km/hr
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Correct answer: B
