1
Q:
A) 3 | B) 4 |
C) 5 | D) 6 |
Answer: D) 6
Explanation:
Explanation:
For prime no units place cannot be occupied by even number except for 2
Thus no of digits occupying unit digit of prime numbers = 6 (1,2,3,5,7,9)
Example 2,3,5,7,11,19 in itself are prime numbers