Question

A water cooler holds 25 liters of sports drink. Approximately how many gallons is this?

Answer 1

since there are 3.785 litters in a gallon that would make the answer lower than 10 hint divide 10 by 2

Answer 2

so you can use the rule of 3 simple and in this way write

1 gallon mean 3,785 liters
x gallon mean 25 liters so now cross multiplie and calcule the x value

x = 25*1 / 3,785 = ? gallon

hope helped understandably