Q.1.     A typist has to type a manuscript of 40 pages. She has typed 30 pages of the manuscript. What is the ratio of the number of pages typed to the number of pages left?

Q.2.     A tea merchant blends two varieties of tea costing her Rs 234 and Rs 130 per kg in the ratio of their costs. If the weight of the mixture is 84 kg, then find the weight of each variety of tea.

Q.3.     An alloy contains only zinc and copper and they are in the ratio of 7 : 9. If the weight of the alloy is 8 kg, then find the weight of copper in the alloy.

Q.4.     Find two numbers whose sum is 100 and whose ratio is 9 : 16.

Q.5.     In the figures below, find ratio of the area of the shaded portion to that of the whole figure:

Q.6.     In a floral design made from tiles each of dimensions 40cm by 60 cm, find the ratios of:

(a) the perimeter of shaded portion to the perimeter of the whole design.

(b) the area of the shaded portion to the area of the unshaded portion.

Q.7.     In the following figure, each division represents 1 cm:

Express numerically the ratios of the following distances:

(i) AC : AF

(ii) AG : AD

(iii) BF : AI

(iv) CE : DI

Q.8.     In the figure below, what is the ratio of the areas of (a) shaded portion I to shaded portion II?