The sum of all even natural number lees than 100is :6) 2272(b)(i) 2352 – InterviewSolution

1.

The sum of all even natural number lees than 100is :6) 2272(b)(i) 2352 (ii) 2450(iv) 2468

Answer»

sum of even numbers = 2+4+6+...+98

= 2(1+2+3+...+49)

Sn = n(n+1)/2

= 2*49*(49+1)/2

= 49*50

= 2450

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