24. 1+2+3+.+100 x, then x isISSC Constable. 20111 – InterviewSolution

1.

24. 1+2+3+.+100 x, then x isISSC Constable. 20111

Answer»

Sum of 1 to 100.

Its an AP series, sum of n terms of APSn = n/2(a1 + an)

Given, a1 = 1, an = 100, n = 100

Then S = 100/2(1 + 100) = 50(101) = 5050

Therefore sum of numbers from 1 to 100 is 5050

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