Five cows and one set of twin calves can be housed separately in a row of seven
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Five cows and one set of twin calves can be housed separately in a row of seven stalls in 7P7 =5040 ways. Find in how many of these arrangements:
a. The two calves are not in adjacent stalls
b. The two calves and their mother, who is one of the 5 cows, are in adjacent stalls
c. Each calf is in a stall adjacent to its mother.
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Related Book For
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
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