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JAMB Mathematics 2011 Paper
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© africaexams.com
Question : 42
Total: 46
Find the probability that a number picked at random from the set(43, 44, 45, ..., 60) is a prime number.
2
3
1
3
2
9
7
9
Validate
Solution:
Prime numbers = (43,47,53,59)
N = (43, 44, 45,..., 60)
The universal set contains 18 numbers.
The prime numbers between 43 and 60 are 4
Probability of picking a prime number =
4
18
=
2
9
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