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OpenStudy (anonymous):
The fastest electricity powered car in the world an travel 18km in 10 minutes find its average speed in km/h
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OpenStudy (campbell_st):
multiply both values by 6 and you get the avg speed for 60 minutes... or 1 hour
OpenStudy (anonymous):
I still don't get it
OpenStudy (jchick):
108 km/h (18x6 since there is 60 min in an hour)
OpenStudy (campbell_st):
18 per 10 minutes 18 x 6 per 10x 6 so 108 km per hour since 10 mins x 6 = 60 mins or 1 hour
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