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jee king king Grade: 12
        

There are counters available in x different colors. The counters are all alike except for th color. The total no of arrangements consisting of y counters, assuming sufficient no. of counters of each color, if no arrangemaent consists of all counters of the same color is?

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear jee king


first counter can be selected in x way


second counter can be selected in x ways


.


.


. yth counter can be selected in x ways


 total ways =xy


but it is also include that case in which all the counter are of same colour


so total posible selection = xy-x





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Badiuddin

7 years ago
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