Find the probability that a number selected from the number 30 to 50 inclusive is a prime
A
1/4
B
5/21
C
2/7
D
3/10
E
1/3
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
30 (31) 32 33 34 35 36 (37) 38 39 40 (41) 42 (43) 44 45 46 (47) 48 49 50
prob = 5/21
Source: Myschool Past Questions Archive (Record #23583)