SOLUTION: the sum of an A. P is 20.the first term and common difference are 8 and -2repectively.find the number of terms 'n in the series

Algebra ->  Sequences-and-series -> SOLUTION: the sum of an A. P is 20.the first term and common difference are 8 and -2repectively.find the number of terms 'n in the series       Log On


   

Question 1124539: the sum of an A. P is 20.the first term and common difference are 8 and -2repectively.find the number of terms 'n in the series
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
8, 6, 4, 2.


4 terms.