Question

In which of the following situations, does the list of numbers involved make an arithmetic
progression, and why?
(1)
The taxi fare after each km when the fare is * 20 for the first km and rises by
8 for each additional km.
The amount of air present in a cylinder when a vacuum pump removes
1
of the
4
air remaining in the cylinder at a time.
The cost of digging a well, after every metre of digging, when it costs 150 for
the first metre and rises by 50 for each subsequent metre.
The amount of money in the account every year, when 10000 is deposited at
compound interest at 8 % per annum.
(IV)​

Answer 1

Answer:

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