SOLUTION: What is the value of 2 – 4 + 6 – 8 + 10 – 12 + 14 ………. – 100 ? (A) -50 (B) 0 (C) 50 (D) 100 (E) None of these
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Question 295963
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What is the value of 2 – 4 + 6 – 8 + 10 – 12 + 14 ………. – 100 ?
(A) -50 (B) 0 (C) 50 (D) 100 (E) None of these
Answer by
richwmiller(17219)
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(A) -50
Each pair loses -2 (2-4) (98-100) for each pair.
There are 50 numbers and 25 pairs
25*-2=-50
Total of -50
