Sum of 1 to 40 is?

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Sum of 1 to 40 is?..

Answer / aniket

820

Is This Answer Correct ?    26 Yes 0 No

Sum of 1 to 40 is?..

Answer / abhinav pratap

sum = n(n+1)/2
so, sum of 1 to 40 = 40(40+1)/2 = 20*21 = 820

Is This Answer Correct ?    2 Yes 0 No

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