The floor of a rectangular room is 6 m long and 4 m wide. Tiles of size 30 cm × 20 cm are to be laid on it.

(a) What is the area of the floor?

(b) What is the area of one tile?

(c) How many tiles will be required to cover the entire floor?

In a week, Arjun recorded the number of books he read each day:

Draw a bar chart and answer the following questions:

(a) What was the total number of books read over the week?

(b) What was the average (mean) number of books per day?

(c) On which day did he read the maximum books?

List any three capital English letters that have exactly one vertical line of symmetry.

Convert the following into percentage:

(a) 17 : 100

(b) 3 : 25

(c) 18 out of 20 students passed the test. What percent passed?