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Question
A boy travels with an average speed of 10 m s-1 for 20 min. How much distance does he travel?
Solution
Average speed of boy = 10 m s-1
Time taken = 20 min
Distance travelled = Speed × Time taken
Convert minutes into seconds
1 minute = 60 sec.
20 minutes = 20 × 60 = 1200 sec.
Distance travelled = 10 m s-1 × 1200 sec.
= 12000 m Or 12 km
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