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Alexus [3.1K]
3 years ago
14

Identify the type of sequence 1/10, 3/20, 5/30, 7/40...

Mathematics
1 answer:
Dafna11 [192]3 years ago
4 0
Arithmetic sequence: must have a constant common difference.
3/20-1/10=(3-2)/20=1/20
5/30-3/20=(10-9)/60=1/60
Difference is not constant, so no.

Geometric sequence: must have a common ratio
30/20 / (1/10) = 15
5/30 / (3/20) = 100/90 = 10/9 
ratio is not constant, so no.

The answer is (c) neither geometric nor arithmetic

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Complete question :

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