Correct option(c) 44,550
Explanation:
The required sum would be given by the sum of the series 110, 121, 132, .... 990. The number of terms in this series = (990 − 110)/11 + 1 = 80 + 1 = 81.
The sum of the series = 81 × 550 (average of 110 and 990) = 44,550.
