Art of Problem Solving

1994 AJHSME Problems/Problem 14: Difference between revisions

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Created page with "==Problem== Two children at a time can play pairball. For <math>90</math> minutes, with only two children playing at time, five children take turns so that each one plays the s..."
 
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Two children at a time can play pairball.  For <math>90</math> minutes, with only two children playing at time, five children take turns so that each one plays the same amount of time.  The number of minutes each child plays is
Two children at a time can play pairball.  For <math>90</math> minutes, with only two children playing at time, five children take turns so that each one plays the same amount of time.  The number of minutes each child plays is
 
where is the anwser ?
<math>\text{(A)}\ 9 \qquad \text{(B)}\ 10 \qquad \text{(C)}\ 18 \qquad \text{(D)}\ 20 \qquad \text{(E)}\ 36</math>
<math>\text{(A)}\ 9 \qquad \text{(B)}\ 10 \qquad \text{(C)}\ 18 \qquad \text{(D)}\ 20 \qquad \text{(E)}\ 36</math>

Revision as of 19:24, 8 November 2012

Problem

Two children at a time can play pairball. For $90$ minutes, with only two children playing at time, five children take turns so that each one plays the same amount of time. The number of minutes each child plays is

where is the anwser ?

$\text{(A)}\ 9 \qquad \text{(B)}\ 10 \qquad \text{(C)}\ 18 \qquad \text{(D)}\ 20 \qquad \text{(E)}\ 36$