Question

are these ratio proportional (i) 20 : 45 and 4 : 9

(ii) 9 : 27 and 33 : 11​

Answer 1

Answer:

yes

hope this will help you

Answer 2

i. Proportion

Cross multiply:
20 * 9 = 45 * 4

Simplifying
20 * 9 = 45 * 4

Multiply 20 * 9
180 = 45 * 4

Multiply 45 * 4
180 = 180

ii. Not a proportion

Cross multiply:
9 * 11 = 27 * 33

Simplifying
9 * 11 = 27 * 33

Multiply 9 * 11
99 = 27 * 33

Multiply 27 * 33
99 = 891

Hope this would help