Question on: JAMB Mathematics - 2001
Find the number of ways of selecting 8 subjects from 12 subjects for an examination.
A
490
B
495
C
496
D
498
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Correct Option: B
Combination is the (n) number of ways of selecting a number of (r) subjects from n.
nCr = n!/r!(n-r)! = 12! 8! x 4! = 495
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