Express the following ratios in simplest form:

(i) 20 : 40

(ii)40 : 20

(iii) 81 : 108

(iv) 98 : 63

Fill in the missing numbers in the following equivalent ratios:

Find the ratio of each of the following in simplest form :

(i) 2.1 m to 1.2 m

(ii) 91 cm to 1.04m

(iii) 3.5 kg to 250gm

(iv) 60 paise to 4 rupees

(v) 1 minute to 15 seconds

(vi) 15 mm to 2 cm

The length and the breadth of a rectangular park are 125 m and 60 m respectively. What is the

the ratio of the length to the breadth of the park?

The population of the village is 4800. If the numbers of females are 2160, find the ratio of males to that of females.

In class, there are 30 boys and 25 girls. Find the ratio of the numbers of

(i) boys to that of girls.

(ii) girls to that of the total number of students.

(iii) boys to that of the total number of students.

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