Difference between revisions of "1995 AJHSME Problems/Problem 7"

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* [[AJHSME Problems and Solutions]]
 
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* [[Mathematics competition resources]]
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Latest revision as of 00:15, 5 July 2013

Problem

At Clover View Junior High, one half of the students go home on the school bus. One fourth go home by automobile. One tenth go home on their bicycles. The rest walk home. What fractional part of the students walk home?

$\text{(A)}\ \dfrac{1}{16} \qquad \text{(B)}\ \dfrac{3}{20} \qquad \text{(C)}\ \dfrac{1}{3} \qquad \text{(D)}\ \dfrac{17}{20} \qquad \text{(E)}\ \dfrac{9}{10}$

Solution

The students who walk home are

$1 - \frac{1}{2} - \frac{1}{4} - \frac{1}{10}$

$\frac{1}{2} - \frac{1}{4} - \frac{1}{10}$

$\frac{1}{4} - \frac{1}{10}$

$\frac{5}{20} - \frac{2}{20}$

$\frac{3}{20}$ of the entire student population. Therefore, the answer is $\boxed{B}$.

See Also

1995 AJHSME (ProblemsAnswer KeyResources)
Preceded by
Problem 6
Followed by
Problem 8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AJHSME/AMC 8 Problems and Solutions

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