Question

5. State whether the following ratios are proportional or not:
(i) 20:45 and 4:9
(ii) 9:27 and 33: 11​

Answer 1

Step-by-step explanation:

1)20:45=4:9 because 5*4 :5*9 it is proportional

2) it is no proportional

Answer 2

Step-by-step explanation:

Solution:

(i) 20 : 45 and 4 : 9

Product of extremes = 20 × 9 = 180

Product of means = 45 × 4 = 180

Here, the product of extremes = Product of means

Hence, the given ratios are in proportion.

(ii) 9 : 27 and 33 : 11

Product of extremes = 9 × 11 = 99

Product of means = 27 × 33 = 891

Here, the product of extremes ≠ Product of means

Hence, the given ratios are not in proportion.