easy · GMAT Quant
A fleet operator filled 20 delivery vans with fuel, using regular gasoline at 3.20 per gallon for some vans and premium diesel at 4.00 per gallon for the remaining vans. If each van required 15 gallons of fuel and the total fueling invoice was $1,056
How many vans were filled with premium diesel?
- 6
- 8
- 10
- 12
- 14
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