Science, asked by deshmukhdipti27, 15 days ago

If a boy runs for 10min at constant speed of 9 km/h. At how much speed it should run for next 20 min so that his average speed is 12 km/h

Answers

Answered by carmenlydiajohnbosco

0

Answer:

The Run for next 20 minutes should be at 13.5 km/hr so that the average speed comes to 12 km/hr

Explanation:

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