Question

.Find odd one out
(A) 5:9
(C) 13:17
(B) 11:13
(D) 29 : 31​

Answer 1

Answer:

i think 29 : 31 is the odd one

Answer 2

Answer:

5:9 is odd one here.

Option A is correct answer.

Step-by-step explanation:

Given four ratios are 5:9,13:17,11:13 and 29:31.

Here 5,13,17,11,29 and 31 are prime numbers but 9 is not a prime number.

So, 13:17,11:13 and 29:31 are ratio of prime numbers but 5:9 is not a ratio of prime numbers.

So, 5:9 is odd one here.

This is a problem of ratio.

Know more about ratio :

Ratio is a form of fraction.

If a and b are two numbers then ratio of a and b is

$a \ratio \: b$

For example,

Ratio of 20 and 30

$= 20 \ratio \: 30 \\ = \frac{20}{30} \\ = \frac{2}{3} \\ = 2 \ratio \: 3$

Ratio related two more questions:

https://brainly.in/question/7996583

https://brainly.in/question/7146945

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