Permutations And Combinations Question 41
Question: A father with 8 children takes them 3 at a time to the Zoological gardens, as often as he can without taking the same 3 children together more than once. The number of times each child will go to the garden is
Options:
A) 56
B) 21
C) 112
D) None of these
Correct Answer: B Each child will go as often as he (or she) can be accompanied by two others. Therefore the required number is $ {{=}^{4}}C_1{{\times }^{6}}C_2=12 $ .
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Answer:
Solution:
BETA
