In how many ways can 6coloured chalks be arranged if 2 are same colour?
a
60
b
120
c
240
d
360
Explanation
Correct Option
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kaywise1504
5 years ago
The question depicted that "if two are of the same colour" , therefore we can't just use normal permutation, we have to minus one making them 4 since 1 is of the same colour. Which will be 5! = 120.
Though the question is really a deceptive one cause different sources are producing different answers and all the answers are in the option.
