Seven trucks are filled equally from a gasoline tank and 1/3 of gasoline is still in the tank. the capacity of each truck is what part of tank:
a) 1/10 b) 2/15 c) 3/20 d) 2/21 e) 4/15

2/21

Step-by-step explanation:

We start out with a full tank.  Once the trucks take from it, it is down to 1/3 of a tank.  Therefore,

So the trucks took 2/3 of the gas.  

If there were 7 trucks and we need to know how much of that 2/3 was taken by each truck, we divide 2/3 by 7:

When dividing fractions, we bring up the lower fraction and flip it and multiply:

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.