Question

Which of the following is not an empty set ? *

1. D = { }

2. The set of all odd natural numbers divisible by 2

3.{X : X is a prime number and 52 < X < 55 }

4.
none of the above​

Answer 1

Required answer :-

3) {X : X is a prime number and 52 < X < 55 }

Reason :-

Here, x is said to be a prime number which is more than 52 and less than 55 .

53 is the prime number which lies between 52 and 55 ; It's a prime number too.

Hence, It's a Singleton set .

It's not an empty set.

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Hope my answer satisfied you.

Regards,

Kritika♡