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urgently required please Peter. MJ. and Ned are lining up for a movie with / other people for a total of 10. How many ways

urgently required please

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Peter. MJ. and Ned are lining up for a movie with / other people for a total of 10. How many ways can they be arranged if a ) There are no restrictions? ( 1 mark) b) None of them will be first? (2 mark) c) What is the probability that Peter, MJ and Ned will be together in some group? (2 mark)

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