Question Detail
Question
Calculate the sum of all two-digit odd positive integers.
Correct Answer
Option A is the correct answer.
Detailed Explanation
The sequence is 11, 13, ..., 99. The number of terms is n = (99 - 11)/2 + 1 = 45. Sum = (45/2)(11 + 99) = 45 * 55 = 2475.
Hint
No hint available