2005
Mathematics
JAMB
In how many ways can 6 coloured chalks be arranged if 2 are same colour?
A.
60
B.
120
C.
240
D.
360
Correct Answer: 360
Explanation
6!/2!=ways=(6×5×4×3×2!)/2!=6×5×4×3=360ways
6!/2!=ways=(6×5×4×3×2!)/2!=6×5×4×3=360waysTHIS WEEK's
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