A cyclist travels 2 miles in 10 minutes and then a further 7 miles in 20 minutes without stopping. Calculate the cyclist's average speed in mph.
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Answer:
18 miles per hour
Step-by-step explanation:
average speed = total distance covered by total time taken
so, avg. speed = ( 2+ 7 ) / ( 20 + 10 )
= 9 / 30
= 3 / 10
= 0.3 miles per minute
= 18 mile per hour
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