allerySum the AP 2 + 4 + 6 + … + 100.
A2550
B2500
C2600
D5050
Answer & Solution
Correct answer: A. 2550
First term 2, last term 100, d = 2. Number of terms: n = (100 − 2)/2 + 1 = 50. Sum: 50/2 (2 + 100) = 25 × 102 = 2550.
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