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What is the sum of 8th and 9th term of following series: 2, 3, 5, 7, 11, 13, 17, ...

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What is the sum of 8th and 9th term of following series: 2, 3, 5, 7, 11, 13, 17, ...
posted Apr 24, 2017 by anonymous

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2 Answers

+2 votes
 
Best answer

As this series is constituted of consecutive prime no. So the 8th nd 9th term would be 19 & 23 respectively. So the sum of those no. Is 19+23=42.

answer Apr 24, 2017 by Pratyush Pathak
+1 vote

13+17-11=19
19+17-13=23
Sum=19+23=42

answer Apr 24, 2017 by Subhash Gupta



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