If the middle number of 25 consecutive natural numbers is 31, then the sum of all those numbers isA775B750C825D875Answer: A. 775 Read Explanation: mean = 31xin=31\frac{x_i}{n}=31nxi=31Σxi=31×25Σx_i=31 \times 25Σxi=31×25=775 Read more in App