Question

18. Rita covers half of her journey at 10 km/h
and the remaining half at 15 km/h. Her
average speed is
(a) 10 km/h (b) 15 km/h (c) 12 km/h (d) 14 km/h​

Answer 1

Answer:

Option (B) 15 km

Step-by-step explanation:

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