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gyuriana gyuriana
  • 16-08-2016
  • Mathematics
Answered

A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round his average speed is 40 mph. How fast does he need to drive, to get the right speed average?

Verified Answer :

alissiaf alissiaf
  • 16-08-2016

240two hundred fourty

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