Exercise 2.3

A student has ₹500 in her savings bank account. She gets ₹150 every month as pocket money. How much money will she have at the end of every month from the second month onwards? Find a linear expression to represent the amount she will have in the nth month.

A rally starts with 120 members. Each hour, 9 members drop out of the group. How many members will remain after 1,2,3,… hours? Find a linear expression to represent the number of members at the end of the nth hour.

Suppose the length of a rectangle is 13cm. Find the area if the breadth is i) 12cm, ii) 10cm, iii) 8cm. Find the linear pattern representing the area of the rectangle.

Suppose the length of a rectangular box is 7 cm and breadth is 11cm. Find the volume if the height is i) 5cm, ii) 9cm, iii) 13cm. Find the linear pattern representing the volume of the rectangular box.

Sarita is reading a book of 500 pages. She reads 20 pages everyday. How many pages will be left after 15 days? Express this as a linear pattern.