Three drivers

Three driversdriving the same direction found that they have same amounth of gasoline. The first is enough to go 6 km, 4 km second and third 3km. Gasoline they divided so all three just drove to the nearest petrol station. How many km away was a petrol station?

Correct result:

x =  4 km



9x = 36

x = 4

Our simple equation calculator calculates it.

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