Home › MCQs › GATE General Aptitude › Question #3762
Back to Questions
GATE General Aptitude QUESTION #3762
Question 1
How many distinct three-digit integers can be formed using three different prime numbers between 0 and 9?
  • 64
  • 24✔️
  • 12
  • 4
Correct Answer Explanation
The prime numbers are {2, 3, 5, 7}. We choose 3 primes in $4C3 = 4$ ways and arrange them in $3! = 6$ ways. Total = $4 \times 6 = 24$.