1990 AJHSME Problems/Problem 22

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Problem

Several students are seated at a large circular table. They pass around a bag containing $100$ pieces of candy. Each person receives the bag, takes one piece of candy and then passes the bag to the next person. If Chris takes the first and last piece of candy, then the number of students at the table could be

$\text{(A)}\ 10 \qquad \text{(B)}\ 11 \qquad \text{(C)}\ 19 \qquad \text{(D)}\ 20 \qquad \text{(E)}\ 25$

Solution

If this is the case, then if there were only $99$ pieces of candy, the bag would have gone around the table a whole number of times. Thus, the number of students is a divisor of $99$ . The only choice that satisfies this is choice $\boxed{\text{B}}$ .

1990 AJHSME (Problems • Resources)
Preceded by Problem 21	Followed by Problem 23
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1990 AJHSME Problems/Problem 22

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Problem

Solution

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