Permu minds
Level
2
There are 5 siblings who bring only one camera for a picture taking. There are 5 chairs provided for them but one of them must hold the camera and the other four may sit anywhere in the 5 chairs. In how many ways can they take pictures?
60
24
120
696
600
720
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..........jsd......... there are 4 persons who will occupy any of the 5 chairs and so the empty chair will be added in counting, therefore we have..... 5!, since there are 5 persons who can hold the camera, we have to multiply 5! by 5, 5!=120, 120*5=600, ...therefore there are 600 ways.....