Which of these are arithmetic progressions and why?
(i) 2,3,5,7,8,10,15, ......

Which of these are arithmetic progressions and why? (ii) 2,5,7,0,12,15,....

Which of these are arithmetic progressions and why? (iii) -1, -3, -5, -7, .......

Write 3 more Arithmetic Progressions.

In which of the following situations, does the list of numbers involved make an arithmetic progression, and why? (iv) The amount of money in the account every year, when Rs. 10000 is deposited at compound intrest at 8% per annum.

In which of the following situations, does the list of numbers involved make an arithmetic progression, and why? (i) The taxi fare after each km when the fare si Rs. 20 for the first km and rises by Rs. 8 for each additional km.

In which of the following situations, does the list of numbers involved make an arithmetic progression, and why? (ii) The amount of air present in a cylinder when a vacuum pump removes 1//4^(th) of the air remaining in the cylinder at a time.

Find the 7^(th) term from the end of the Arithmetic Progression. 7, 10, 13, ……, 184.

Four numbers are in arithmetic progression. The sum of first and last terms in 8 and the product of both middle terms is 15. the least number of the series is