# The Average of 7, 11, 15, x, 14, 21, 25, is 15, Then the Value of x is:

**Answer: (1) 12
Explanation:-
Formula-
Average = the sum of the observation/ the number of the observation**

Then, the average = (7 + 11 + 15 + x + 14 + 21 + 25)/7 = 15

(93 + x)/7 = 15

93 + x = 15 x 7

93 + x = 105

x = 105 – 93

x = 12

the, the value of x is 12.

Hence, the answer is (1) 12.