Some time ago to drive out, halfway in the service area to refuel, see the price of 92 # gasoline, has almost broken through 8 yuan / liter, instantly feel that almost can not add fuel [tears] [tears]
Is there a reasonable way to refuel? Can make refueling more favorable.
Please listen to the question: ↓
Because the price of fuel oil rises and falls, it has strong volatility. There is a person who commutes between A and B every day and needs to refuel frequently, and now he has two commonly used refueling schemes:[666]
The first option is to add 30 liters of fuel at a time
The second option is to add 200 yuan of fuel at a time
Please judge through your common sense cognition or mathematical calculations
Which of the following statements is correct? It's better to be able to justify your reasons! [Like]
A. It is cost-effective to adopt the second scheme
B. The two schemes are the same
C. Which scheme cannot be determined
D, the use of the first scheme is cost-effective
