If the mean of the other five numbers is x, then their sum is 5x. The sum of all six numbers is 5x + 15 or 25*6 = 150. We obtain an equation: 5x + 15 = 150, whose solution is x = (150 - 15)/5 = 135/5 = 27.
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?