What is the sum of the numbers from 1 to 70? 1 + 2 + 3 + ………. + – InterviewSolution

1.

What is the sum of the numbers from 1 to 70? 1 + 2 + 3 + ………. + 80 = 3240 71 + 72 + ……….. + 80 = 755

Answer»

Step-by-step explanation:

The SUM of number from 1 to 70=2485

sn=n/2{2A+(n-1)d}

=35(2+69)

=2485

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