Find the probability that a number selected from the number 30 to 50 inclusive is a prime
- 1/4
-
5/21
- 2/7
- 3/10
- 1/3
The correct answer is: B
Explanation
30 (31) 32 33 34 35 36 (37) 38 39 40 (41) 42 (43) 44 45 46 (47) 48 49 50prob = 5/21