Take any Arithmetic progression.

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.

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? (iii) The cost of digging a well, after every metre of digging, when it costs Rs. 150 for the first metre and rises by Rs. 50 for each subsequent metre.

"Pupulation grows in geometric progression and food sources increases in arithmetic progression. Who proposed this?

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

Measures of sides of a triangle are in Arithmetic Progression. Its perimeter is 30 cm, and the difference between the longest and shortest side is 4 cm , then find the measures of the sides.

The angle of a triangle ABC are in an arithmetic progression . The larger sides a,b satisfy the relation (sqrt(3))/(2) lt (b)/(a) lt 1 . then the possible values of the smallest side are