find the sum of the even number between 15 and 100 – InterviewSolution

1.

find the sum of the even number between 15 and 100

Answer»

an = a+(n-1)d98=52+(n-1)298-52=(n-1)2(n-1)=46÷2(n-1)=23n=24

Sn=n/2(a+l)s24=24/212(52+98)12(150)1800

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