Question

In the following situations does the list of numbers involved make an arithmetic progression and , why ?​

Answer 1

it is not an AP

Step-by-step explanation:

Let the initial volume of air in a cylinder be V litres. In each stroke, the vacuum pump removes 1/4 of air remaining in the cylinder at a time. In other words, after every stroke, only 1 - 1/4 = 3/4th part of air will remain.

Therefore, volumes will be V, 3V/4 , (3V/4)2 , (3V/4)3...

Clearly, it can be observed that the adjacent terms of this series do not have the same difference between them. Therefore, this is not an A.P.

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Answer 2

Answer:

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it's not an AP.

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Step-by-step explanation:

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✨explanation is in attachment ✨

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