5 * 5 = 25
5 * 5 * 5 = 125
One student will be randomly selected out of 100 as follows.
1. Each student will be assigned a number with the digits 1 through 5 allowed.
2. Several wheels with five sectors labeled 1 through 5 will be spun, and a number will be read from each wheel.
3. If the outcome matches some student's number, the student is selected.
4. If the spin produces an outcome not corresponding to any student, the wheels will be spun again until the outcome matches some student.
What is the minimum number of wheels that will allow each student to be encoded with a unique outcome?
A. 2
B. 3
C.15
D.20
1 answer
2 answers