Total of sum 1 to 100? – InterviewSolution

1.

Total of sum 1 to 100?

Answer»

1.2,3,4........99,100 is a series

Sum of series = n/2(first number + last number)

Where n = no. of integers= 100/2(1 + 100)= 50(101)= 5050

Sum of 1 to 100 = 5050

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