In order to lose one pound one must burn off 3500 calories to burn off 100 calories you must exercise for 15 minutes how long do you have to exercise to lose 3 pounds

3500 / 100 = 35 (This is how many times we have to burn 100 calories for the total of 1 pound - 3500 calories)

35 * 15 = 525 minutes or 8.75 hours. This is for 1 pound. We're converting the calories into minutes based on the provided formula of 100 calories = 15 minutes.

525 * 3 = 1575 minutes or 26.25 hours

The answer would be 7 cages