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  • ...ut were never zero. Angela drank a quarter of the total amount of milk and a sixth of the total amount of coffee. How many people are in the family? <math>\text {(A)}\ 3 \qquad \text {(B)}\ 4 \qquad \text {(C)}\ 5 \qquad \text {(D)}\ 6 \qqu
    6 KB (1,011 words) - 16:30, 6 October 2024
  • ...he mayor's work. On three separate occasions a pollster selects a voter at random. What is the probability that on exactly one of these three occasions the v <math>\mathrm{(A)}\ {{{0.063}}} \qquad \mathrm{(B)}\ {{{0.189}}} \qquad \mathrm{(C)}\ {{{0.2
    2 KB (264 words) - 18:39, 3 November 2024
  • ...s as a Renewable Energy Engineer for the Southern Company, and Hannah runs a lab at Jupiter Falls University where she researches biomass (renewable fue When the Kubiks went on vacation to San Diego last year, they spent a day at the San Diego Zoo.
    71 KB (11,749 words) - 11:39, 20 November 2024
  • <math>\text{(A)}\ 947 \qquad \text{(B)}\ 1037 \qquad \text{(C)}\ 1047 \qquad \text{(D)}\ 1 <math>\text{(A)}\ 1 \qquad \text{(B)}\ 2 \qquad \text{(C)}\ 3 \qquad \text{(D)}\ 4 \qquad
    15 KB (2,059 words) - 14:03, 6 October 2021
  • <math>\text{(A)}\ \dfrac{6}{x} \qquad \text{(B)}\ \dfrac{6}{x+1} \qquad \text{(C)}\ \dfrac If <math>\begin{tabular}{r|l}a&b \\ \hline c&d\end{tabular} = \text{a}\cdot \text{d} - \text{b}\cdot \text{c}</math>, what is the value of <math>
    14 KB (1,920 words) - 18:31, 31 January 2024
  • ...math> apples at a cost of <math> 50 </math> cents per apple. She paid with a 5-dollar bill. How much change did Margie receive? <math>\textbf{(A) }\ \textdollar 1.50 \qquad \textbf{(B) }\ \textdollar 2.00 \qquad \textbf{
    16 KB (2,371 words) - 16:34, 9 January 2024
  • ...arlos, and Diego are seated at random around a square table, one person to a side. What is the probability that Angie and Carlos are seated opposite eac <math> \textbf{(A) } \frac14 \qquad\textbf{(B) } \frac13 \qquad\textbf{(C) } \frac12 \qquad\t
    1 KB (219 words) - 10:00, 18 November 2024
  • ...e the positive integer <math>n</math> such that <math>n^2+20n+40</math> is a perfect square. (Proposed by djmathman) ...umber of ordered integer pairs <math>(a,b)</math> such that <math>a^2+b^2|(a+b)^2</math>. (Proposed by djmathman)
    15 KB (2,444 words) - 20:46, 1 January 2012
  • <math> \text{(A)}\ 60\qquad\text{(B)}\ 170\qquad\text{(C)}\ 290\qquad\text{(D)}\ 320\qquad\ Note that if <math>n</math> is the number of friends each person has, then <math>n</math> can be any integer from <math>1</math> to <math>4<
    6 KB (949 words) - 10:22, 3 November 2024
  • <math> \textbf{(A)}\ 48\qquad\textbf{(B)}\ 56\qquad\textbf{(C)}\ 64\qquad\textbf{(D)}\ 72\qqu A circle of radius 5 is inscribed in a rectangle as shown. The ratio of the length of the rectangle to its width
    18 KB (2,350 words) - 17:48, 9 July 2023
  • ...bility that a person who is chosen at random from this population and gets a positive test result actually has the disease. Which of the following is cl <math>\textbf{(A)}\ \frac{1}{98}\qquad\textbf{(B)}\ \frac{1}{9}\qquad\textbf{(C)}\ \frac{1}{
    3 KB (465 words) - 11:52, 26 September 2024
  • ...eople so that exactly one person receives the type of meal ordered by that person. ...ath>9</math> to account for the <math>9</math> different ways in which the person to receive the correct meal could be picked. Note, this implies that the di
    4 KB (723 words) - 16:17, 7 September 2024
  • ...s with three not necessarily distinct digits, <math>abc</math>, with <math>a \neq 0</math> and <math>c \neq 0</math> such that both <math>abc</math> and ...eople so that exactly one person receives the type of meal ordered by that person.
    10 KB (1,617 words) - 13:49, 2 June 2023
  • A circle of maximal area is inscribed in the region bounded by the graph of < A permutation of the numbers <math>\{2</math>, <math>3</math>, <math>4</math>
    7 KB (1,309 words) - 10:13, 8 April 2012
  • After a cyclist has gone <math> \frac{2}{3} </math> of his route, he gets a flat tire. Finishing on foot, he spends twice as long walking as he did rid A customer enters a supermarket. The probability that the customer buys bread is <math> 0.60 </
    10 KB (1,477 words) - 15:02, 27 May 2012
  • <math> \textbf{(A)}\ -1 \qquad\textbf{(B)}\ \frac{5}{36} \qquad\textbf{(C)}\ \frac{7}{12} \q ...f Mr. Green's steps is <math>2</math> feet long. Mr. Green expects a half a pound of potatoes per square foot from his garden. How many pounds of pota
    12 KB (1,926 words) - 20:54, 6 October 2022
  • ...math>, <math>b</math>, and <math>c</math> we define <math>f(a,b,c)=\frac{c+a}{c-b}</math>, then <math>f(1,-2,-3)</math> is <math> \textbf{(A) } -2 \qquad \textbf{(B) } -\frac{2}{5} \qquad \textbf{(C) } -\frac{1}{4} \
    16 KB (2,451 words) - 03:27, 6 September 2021
  • <math>\textbf{(A)}\ \pm\frac{1}{2}\qquad\textbf{(B)}\ \pm 1\qquad\textbf{(C)}\ \pm 2\qquad\t <math>\textbf{(A) } -16\qquad
    14 KB (2,099 words) - 00:15, 10 September 2021
  • <math>\textbf{(A)}\ 2y \qquad <math>\textbf{(A)}\ y = \frac{1}{3} x + 8 \qquad
    17 KB (2,512 words) - 17:30, 12 October 2023
  • <math>\textbf{(A)}\ (0,0)\qquad <math>\textbf{(A)}\ -14 \qquad
    20 KB (3,122 words) - 13:17, 20 February 2020

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