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Hunter-Best [27]
3 years ago
13

The sum of an infinite geometric series is 1,280, while the first term of the series is 160. What is the common ratio of the ser

ies?
Mathematics
1 answer:
Arlecino [84]3 years ago
7 0
The sum is 160/(1-r)=1280 where r is the common ratio,
1/(1-r)=1280/160=8
Inverting we get 1-r=1/8, r=7/8.
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