If second and third digit of each number is interchanged then how many prime numbers are there in th...........

Direction: Study the following series of sets of numbers. Carefully answer the question given below.

525 852 347 293 174

If second and third digit of each number is interchanged, then how many prime numbers are there in the given series?

This questions was previously asked in

RRB Clerk Prelims (19 Aug, 2023 Shift 1)

Two

Three

Four

One

Zero

- Let's interchange the second and third digit of each number:

- 525 becomes 552

- 852 becomes 825

- 347 becomes 374

- 293 becomes 239

- 174 becomes 147

- Check if these numbers are prime:

- 552: Not prime

- 825: Not prime

- 374: Not prime

- 239: Prime (it is divisible only by 1 and itself)

- 147: Not prime

- There is only one prime number, which is 239.

Option: 4 - One is the correct answer.

Submit Error