Question

Exercise 8.2
1. Check whether the given two ratios form a proportion or not:
(i) 4:6 and 12 : 18
(ii) 15 : 45 and 40 : 120
(iii) 14 : 4 and 18 : 6
(iv) 12 : 18 and 28 : 12.​

Answer 1

1 and 2 are in a proportion

Step-by-step explanation:

1) 4:6::12:18 = 2:3::2:3

2) 15:45::40:120 = 1:3::1:3

3)14:4≠18:6 = 7:2≠9:3

4)12:18::28:12≠ 4:6,8:4

just you have to find it's simplest form by dividing it with the same number.

I hope you understand it