A water tank holds 248 gallons but is leaking at a rate of 3 gallons per week. A second water tank holds 372 gallons but is leaking at a rate of 5 gallons per week. After how many weeks will the amount of water in the two tanks be the same?
Let the number of weeks when the 2 tanks equalize =W
248 - 3W =372 - 5W, solve for W
5W - 3W =372 - 248
2W = 124
W = 124 / 2
W = 62 weeks - when both tanks will be the same.