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A Guide with 8 persons takes 3 at a time in a boat at a time as often as he can without taking the same 3 persons more than once. The no. of times each person will go in the boat is?

$\begin{array}{1 1} 336 \\ 112 \\ 56\\ none\;of\;these \end{array}$

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3 persons can be chosen from 8 persons in $^8C_3$ ways.
Which is the required no. of ways= $56$
answered Sep 3, 2013 by rvidyagovindarajan_1

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