Arithmetic progressin

by **Guest** » Sat Sep 26, 2015 9:56 am

In AP, the ratio of the 18th term to the 6th term is 3:1. Calculate the value of the common difference, the 1st term and the ratio of the sum of the 1st 18 term to the sum of the 1st 6 term

by **Guest** » Sat Sep 26, 2015 5:00 pm

ist term = common difference = 1
sum of first 18 terms is 171
sum of first 6 terms is 21
ratio of sum of 1st 18 terms to 1st 6 terms is 8.14 : 1

Arithmetic progressin

Arithmetic progressin

Re: Arithmetic progressin

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