Roller Coaster at an amusement park is m high. If a new roller coaster is built that is times the height of the existing coaster, what will be the height of the new roller coaster?

The table shows the portion of some common materials that are recycled.

(a) Is the rational number expressing the amount of paper recycled more than or less than?

(b) Which items have a recycled amount less than?

(c) Is the quantity of aluminium cans recycled more (or less) than half of the quantity of aluminium cans?

(d) Arrange the rate of recycling the materials from the greatest to the smallest.

The overall width in cm of several wide-screen televisions are 97.28 cm, cm, cm and 97.94 cm. Express these numbers as rational numbers in the form and arrange the widths in ascending order.

Here is a table which gives the information about the total rainfall for several months compared to the average monthly rains of a town. Write each decimal in the form of rational number p/q.

The average life expectancies of males for several states are shown in the table. Express each decimal in the form p/q and arrange the states from the least to the greatest male life expectancy.

State-wise data are included below; more indicators can be found in the “FACTFILE” section on the homepage for each state.