The given sequence is not arithmetic sequence
<em><u>Solution:</u></em>
Given sequence is:

We have to find if the above sequence is arithmetic sequence or not
An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant
<em><u>Here in the given sequence</u></em>

<em><u>Let us find the difference between terms</u></em>




Thus the difference between terms is not constant
So the given sequence is not arithmetic sequence
12 minutes because 80-20 is 60 and 60 divides by 5 is 12
Answer:
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Step-by-step explanation:
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