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 is Rs 15 for the first km and 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 cost Rs 150 for the first metre and rises by Rs 50 for each subsequent metre.

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 remove 1/4 of the air remaining in the cylinder at a time .

The wheels of a car of diameter 80cm each.How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66 km per hour?

The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minitues when the car is traveling at the speed of 66 km per hour.