InterviewSolution
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Calculate: 1 – 2 + 3 – 4 + 5 – 6 + 7 – 8 + 9 – 10 |
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Answer» 1 – 2 + 3 – 4 + 5 – 6 + 7 – 8 + 9 – 10 = (1 + 3 + 5 + 7 + 9) – (2 + 4 + 6 + 8 + 10) = 25 – 30 = –5 |
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