The quarterly school fee in Kendriya Vidyalaya for Class VI is Rs 540. What will be the fee for seven months?

In which of the following situations, do the lists of numbers involved form an AP? Give reasons for your answers. (i) The fee charged from a student every month by a school for the whole session, when the monthly fee is Rs. 400. (ii) The fee charged every month by a school from classes I to XII, When the monthly fee for class I is Rs. 250 and it increases by Rs. 50 for the next higher class. (iii) The amount of money in the account of Varun at the end of every year when Rs. 1000 is deposited at simple interest of 10% per annum. (iv) The number of bacteria in a certain food item after each second, when they double in every second.

The pie chart presents the various kinds of expense incurred by a particular family in a month. The amount spent on educational fees in a month is Rs. 18000. What is the total monthly expenditure of the family ? The figures shown in the Pie chart against the various heads of expenditure do not indicate the central angles.

The average expenditure of a man for the first five months of a year is Rs 5000 and for the next seven months it is Rs 5400. He saves Rs 2300 during the year.His average monthly income is (a) Rs 5425 (b) Rs 5446 (c) Rs 5500 (d) Rs 5600

In which of the following situations, do the lists of numbers involved form an A.P. ? Give reasons for your answer. The fee charged every month by a school from Classes I to XII, when the monthly fee for Class I is Rs 250, and it increases by Rs 50 for the next higher class.

The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. Find his monthly average income if he saves Rs. 2900 during the year.

The average expenditure of a man for the first five months is Rs 1200 and for the next seven months is Rs 1300 .If he saves Rs 2900 in that year,his monthly average income is (a) Rs 1500 (b) Rs 1600 (c) Rs 1700 (d) Rs 1400