6) Find the sum of all two digit odd multiples of 3. – InterviewSolution

1.

6) Find the sum of all two digit odd multiples of 3.

Answer»

a=15d=6l=99no of terms= 15sum of all 2 digit odd multiples of 3 =15÷2(a+l)=15÷2(15+99)855

final answer is 855 for this

Correct Ans =855a =15d=6an =16By Sn formula of AP.correct Ans =855

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