NDA2021MathematicsMatricesActual
How many matrices of different orders are possible with elements comprising all prime numbers less than 30 ?
Options
- A2
- B3
- C4
- D6
Correct answer
C. 4
Step-by-step solution
Prime number less than 30 are 2,3,5,7,11,13,17,19,23 and 29. Number of prime number =10 . Different order of matrices: 1 10,10 1,2 5 and 5 2