Question

1. Reduce each of the following ratio to their lowest terms:
(i) 1 hour 20 min: 2 hours
(ii) 4 weeks : 50 days
(iii) 3 years 4 months : 5 years 5 months

2. The strength of a class is 90, including 30 girls. Find the ratio of number of:
(i) girls to boys
(ii) boys to the whole class
(iii) the whole class to girls

3. Two numbers are in the ratio 9:5. If the smaller number is 40 find the other number.

4. The length of a pencil is 18cm and its radius is 4cm. Find the ratio of its length to its diameter.​

Answer 1

Answer:

1) i.)4:3

ii.) 14:25

2)i.) 1:2

ii.) 2:3

iii.)3:1

3) 56

4) 9:4

Answer 2

Answer:

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