An algebra class has 20 students and 20 desks. For the sake of variety,
students change the seating arrangement each day. How many days must pass
before the class must repeat a seating arrangement?
days must pass before a seating arrangement is repeated.
Suppose the desks are arranged in rows of 4. How many seating arrangements are
there that put Larry, Moe, Curly, and Shemp in the front seats?
There are
seating arrangements that put them in the front
seats.
What is the probability that Larry, Moe, Curly and Shemp are sitting in the
front seats?
The probability is
.
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Box 2: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Box 3: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity