Ex 5.1 Qn 1

Arithmetic Progression :

Question 1: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. ii) The cost of air present in a cylinder when a vacuum pump removes ¼ of the air remaining in the cylinder at a time. :

Question 1 (contd):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 meter of digging, when it costs Rs 150 for the first meter and rises by Rs 50 for each subsequent meter. Iv) The amount of money in the account every year, when Rs 10000 is deposited at compound interest at 8% per annum. :

Slide4 :