2013
Mathematics
JAMB
In how many ways can a student select 2 subjects from 5 subjects?
A.
5!/3!
B.
5!/2!2!
C.
5!/2!3!
D.
5!/2!
Correct Answer: 5!/2!3!
Explanation
A student can select 2 subjects from 5 subjects in; 5C3 ways, i.e. = 5!/2!(5−2)! = 5!/2!3!
A student can select 2 subjects from 5 subjects in; 5C3 ways, i.e. = 5!/2!(5−2)! = 5!/2!3!THIS WEEK's
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