3 years ago

What is the 5th term of this geometric sequence? 100, 20, 4, 0.8, …

1 answer:

6 0

First we have to find out the common number of them.
For that purpose, the first number should be divided by next number.
100/20 = 5
20/4 = 5
4/0.8 = 5

we have found that 5 is the common number.
0.8/5 = 0.16

therefore the answer is c

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