Question

Choose the odd one out from the given alternatives. (A) 5:9 (B) 17:19 (C) 83: 89 (D) 37:41​

Answer 1

Answer:

I think option a is correct

Step-by-step explanation:

5,17,17,,83,89,37,41 are all prime but 9 is not a prime

Answer 2

Given : A) 5:9 (B) 17:19 (C) 83: 89 (D) 37:41​

To Find : Odd one out

Solution:

Prime numbers are the natural  numbers which has exactly 2 factors

1 and number itself

5 : 9   5 is prime and 7 is next prime number  

and 9 is not prime number

17 : 19  both are consecutive prime numbers

83 : 89   both are consecutive prime numbers

37 : 41 both are consecutive prime numbers

Hence odd one out is

5 : 9  as these are not both consecutive prime number

x : y

where x is prime number  and  y is next prime number

So correct option is  A)  5:9

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