SOLUTION: Suresh takes 18 min to go to market and 4 min to come back by motorcycle.If market is 10.5km away from his house, find his average speed.

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Question 1012042: Suresh takes 18 min to go to market and 4 min to come back by motorcycle.If market is 10.5km away from his house, find his average speed.
Answer by ValorousDawn(53) About Me  (Show Source):
You can put this solution on YOUR website!
He went to the market for 10.5 km, and then back for another 10.5 km for a total of 21 total km traveled. The total time is the sum of 18+4 for 22 min. Since speed is defined as total distance over total time, we plug in our distance and time for 21 km/22 min or about 0.954 km/min