Difference between revisions of "1958 AHSME Problems/Problem 1"

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==Problem==
 
==Problem==
  
The value of <math> [2 \minus{} 3(2 \minus{} 3)^{\minus{}1}]^{\minus{}1}</math> is:
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The value of <math> [2 - 3(2 - 3)^{-1}]^{-1}</math> is:
  
 
<math> \textbf{(A)}\ 5\qquad  
 
<math> \textbf{(A)}\ 5\qquad  
\textbf{(B)}\ \minus{}5\qquad  
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\textbf{(B)}\ -5\qquad  
 
\textbf{(C)}\ \frac{1}{5}\qquad  
 
\textbf{(C)}\ \frac{1}{5}\qquad  
\textbf{(D)}\ \minus{}\frac{1}{5}\qquad  
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\textbf{(D)}\ -\frac{1}{5}\qquad  
 
\textbf{(E)}\ \frac{5}{3}</math>
 
\textbf{(E)}\ \frac{5}{3}</math>
  
 
==Solution==
 
==Solution==
  
<math> \frac{1}{2\minus{}3(\minus{}1)}=\frac{1}{5}</math>, so the answer is <math>\boxed{\text{C}}</math>.  
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<math> \frac{1}{2-3(-1)}=\frac{1}{5}</math>, so the answer is <math>\boxed{\text{C}}</math>.  
  
 
==See also==
 
==See also==
  
 
{{AHSME box|year=1958|before=First question|num-a=2}}
 
{{AHSME box|year=1958|before=First question|num-a=2}}

Revision as of 12:10, 3 June 2011

Problem

The value of $[2 - 3(2 - 3)^{-1}]^{-1}$ is:

$\textbf{(A)}\ 5\qquad  \textbf{(B)}\ -5\qquad  \textbf{(C)}\ \frac{1}{5}\qquad  \textbf{(D)}\ -\frac{1}{5}\qquad  \textbf{(E)}\ \frac{5}{3}$

Solution

$\frac{1}{2-3(-1)}=\frac{1}{5}$, so the answer is $\boxed{\text{C}}$.

See also

1958 AHSME (ProblemsAnswer KeyResources)
Preceded by
First question
Followed by
Problem 2
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All AHSME Problems and Solutions