www.eenadupratibha.netth term in Arithmetic progression is n + $. Find – InterviewSolution

1.	www.eenadupratibha.netth term in Arithmetic progression is n + $. Find the sum of first 10 terms13.
Answer» If nth term is n+5 hence 10th term will be 10+5=15and first term will be 1+5=6henceSum of first 10 termsSn=n/2(first term +last term)S10=10/2(15+6)S10=5(21)=105

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