Difference between revisions of "1951 AHSME Problems/Problem 13"

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== Solution ==  
 
== Solution ==  
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Because <math>B</math> is <math>50\%</math> more efficient, he can do <math>1.5</math> pieces of work in <math>9</math> days. This is equal to 1 piece of work in <math>\textbf{(C)}\ 6 </math>
  
 
== See Also ==
 
== See Also ==

Revision as of 20:07, 10 April 2013

Problem

$A$ can do a piece of work in $9$ days. $B$ is $50\%$ more efficient than $A$. The number of days it takes $B$ to do the same piece of work is:

$\textbf{(A)}\ 13\frac {1}{2} \qquad\textbf{(B)}\ 4\frac {1}{2} \qquad\textbf{(C)}\ 6 \qquad\textbf{(D)}\ 3 \qquad\textbf{(E)}\ \text{none of these answers}$

Solution

Because $B$ is $50\%$ more efficient, he can do $1.5$ pieces of work in $9$ days. This is equal to 1 piece of work in $\textbf{(C)}\ 6$

See Also

1951 AHSC (ProblemsAnswer KeyResources)
Preceded by
Problem 12
Followed by
Problem 14
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All AHSME Problems and Solutions