The mean of the remaining numbers is 11.
Let the sum of numbers be x. Mean is calculated by the formula -
Mean = sum of number ÷ total numbers
7 = sum of numbers ÷ 11
Sum of numbers = 7 × 11
Performing multiplication on Right and Side
Sum of numbers = 77
New sum of numbers = 77 - 13
Performing subtraction on Right Hand Side
New sum of numbers = 64
Total numbers = 6
New mean = 64 ÷ 6
Performing division on Right and Side
New mean = 10.67 or 11
The new mean will be 11.
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