Question

Which of the following are in proportion?
(a) 2,3,20,30
(b) 3,4,15,18
(c) 1,3,11,22
(d) 2,5,40,80.

Answer 1

2,3,20,30 are in proportion.

2/3 = 20/30

2/3 = 2/3

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Answer 2

Answer:

2,3,20,30 are in proportion

Step-by-step explanation:

Ratio of 2,3. =2:3

We can't simplify.

Ratio of 20,30=20:30=20/30=2/3

=2:3

Therefore 2,3,20, 30 are in proportion