Difference between revisions of "1993 AJHSME Problems/Problem 24"

(Created page with "==Problem== What number is directly above <math>142</math> in this array of numbers? \[\begin{tabular}{cccccc} & & & 1 & & \\ & & 2 & 3 & 4 & \\ & 5 & 6 & 7 & 8 & 9 \\ 10 & 11...")
 
(Problem)
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What number is directly above <math>142</math> in this array of numbers?
 
What number is directly above <math>142</math> in this array of numbers?
  
\[\begin{tabular}{cccccc}
+
<cmath> \begin{tabular}{cccccc}& & & 1 & &\\ & & 2 & 3 & 4 &\\ & 5 & 6 & 7 & 8 & 9\\ 10 & 11 & 12 &\cdots & &\\ \end{tabular} </cmath>
& & & 1 & & \\
 
& & 2 & 3 & 4 & \\
 
& 5 & 6 & 7 & 8 & 9 \\
 
10 & 11 & 12 & \cdots & & \\
 
\end{tabular}\]
 
  
 
<math>\text{(A)}\ 99 \qquad \text{(B)}\ 119 \qquad \text{(C)}\ 120 \qquad \text{(D)}\ 121 \qquad \text{(E)}\ 122</math>
 
<math>\text{(A)}\ 99 \qquad \text{(B)}\ 119 \qquad \text{(C)}\ 120 \qquad \text{(D)}\ 121 \qquad \text{(E)}\ 122</math>

Revision as of 19:15, 19 August 2011

Problem

What number is directly above $142$ in this array of numbers?

\[\begin{tabular}{cccccc}& & & 1 & &\\ & & 2 & 3 & 4 &\\ & 5 & 6 & 7 & 8 & 9\\ 10 & 11 & 12 &\cdots & &\\ \end{tabular}\] (Error compiling LaTeX. ! Missing $ inserted.)

$\text{(A)}\ 99 \qquad \text{(B)}\ 119 \qquad \text{(C)}\ 120 \qquad \text{(D)}\ 121 \qquad \text{(E)}\ 122$

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