Find the probability of getting a perfect number when a number is selected from 1 to 30
A1/6
B1/15
C1/5
D1/10
Answer:
B. 1/15
Read Explanation:
Total number of outcomes= 30
P(getting a perfect number) = 2/30
= 1/15
A perfect number is a positive integer that is equal to the sum of all its positive divisors, except for the number itself
Eg : 6, 28, 496