User contributions
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- 19:06, 19 August 2011 (diff | hist) . . (0) . . 1993 AJHSME Problems/Problem 14 (→Problem)
- 19:06, 19 August 2011 (diff | hist) . . (+1) . . 1993 AJHSME Problems/Problem 14 (→Problem)
- 19:06, 19 August 2011 (diff | hist) . . (+388) . . N 1993 AJHSME Problems/Problem 14 (Created page with "==Problem== The nine squares in the table shown are to be filled so that every row and every column contains each of the numbers <math>1,2,3</math>. Then <math>A+B=</math> \[\...")
- 19:05, 19 August 2011 (diff | hist) . . (+1,713) . . N 1993 AJHSME Problems/Problem 13 (Created page with "==Problem== The word "'''HELP'''" in block letters is painted in black with strokes <math>1</math> unit wide on a <math>5</math> by <math>15</math> rectangular white sign with d...")
- 19:05, 19 August 2011 (diff | hist) . . (+510) . . N 1993 AJHSME Problems/Problem 12 (Created page with "==Problem== If each of the three operation signs, <math>+</math>, <math>-</math>, <math>\times </math>, is used exactly ONCE in one of the blanks in the expression <cmath>5\hsp...")
- 19:56, 18 August 2011 (diff | hist) . . (+724) . . N 1992 AJHSME Problems/Problem 24 (Created page with "==Problem== Four circles of radius <math>3</math> are arranged as shown. Their centers are the vertices of a square. The area of the shaded region is closest to <asy> fill((3...")
- 19:55, 18 August 2011 (diff | hist) . . (+298) . . N 1992 AJHSME Problems/Problem 23 (Created page with "==Problem== If two dice are tossed, the probability that the product of the numbers showing on the tops of the dice is greater than 10 is <math> \text{(A)}\ \frac{3}{7}\qquad\t...")
- 19:55, 18 August 2011 (diff | hist) . . (+680) . . N 1992 AJHSME Problems/Problem 22 (Created page with "==Problem== Eight <math>1\times 1</math> square tiles are arranged as shown so their outside edges form a polygon with a perimeter of <math>14</math> units. Two additional tile...")
- 19:54, 18 August 2011 (diff | hist) . . (+2,058) . . N 1992 AJHSME Problems/Problem 21 (Created page with "==Problem== Northside's Drum and Bugle Corps raised money for a trip. The drummers and bugle players kept separate sales records. According to the double bar graph, in what mont...")
- 19:52, 18 August 2011 (diff | hist) . . (+1,112) . . N 1992 AJHSME Problems/Problem 20 (Created page with "==Problem== Which pattern of identical squares could NOT be folded along the lines shown to form a cube? <asy> unitsize(12); draw((0,0)--(0,-1)--(1,-1)--(1,-2)--(2,-2)--(2,-3)-...")
- 19:51, 18 August 2011 (diff | hist) . . (+492) . . N 1992 AJHSME Problems/Problem 19 (Created page with "==Problem== The distance between the <math>5^\text{th}</math> and <math>26^\text{th}</math> exits on an interstate highway is <math>118</math> miles. If any two exits are at le...")
- 19:51, 18 August 2011 (diff | hist) . . (+418) . . N 1992 AJHSME Problems/Problem 18 (Created page with "==Problem== On a trip, a car traveled <math>80</math> miles in an hour and a half, then was stopped in traffic for <math>30</math> minutes, then traveled <math>100</math> miles ...")
- 19:50, 18 August 2011 (diff | hist) . . (+510) . . N 1992 AJHSME Problems/Problem 17 (Created page with "==Problem== The sides of a triangle have lengths <math>6.5</math>, <math>10</math>, and <math>s</math>, where <math>s</math> is a whole number. What is the smallest possible va...")
- 19:49, 18 August 2011 (diff | hist) . . (+1,564) . . N 1992 AJHSME Problems/Problem 16 (Created page with "==Problem== <asy> draw(ellipse((0,-5),10,3)); fill((-10,-5)--(10,-5)--(10,5)--(-10,5)--cycle,white); draw(ellipse((0,0),10,3)); draw((10,0)--(10,-5)); draw((-10,0)--(-10,-5)); ...")
- 19:46, 18 August 2011 (diff | hist) . . (+289) . . N 1992 AJHSME Problems/Problem 15 (Created page with "==Problem== What is the <math>1992^\text{nd}</math> letter in this sequence? <cmath>\text{ABCDEDCBAABCDEDCBAABCDEDCBAABCDEDC}\cdots </cmath> <math>\text{(A)}\ \text{A} \qquad ...")
- 11:39, 18 August 2011 (diff | hist) . . (-61) . . 1993 AHSME Problems/Problem 1
- 11:16, 18 August 2011 (diff | hist) . . (-96) . . AMC 12 Problems and Solutions
- 11:15, 18 August 2011 (diff | hist) . . (+425) . . AMC 12 Problems and Solutions
- 10:05, 18 August 2011 (diff | hist) . . (+51) . . AMC 12 Problems and Solutions
- 20:36, 16 August 2011 (diff | hist) . . (+51) . . AMC 12 Problems and Solutions
- 19:19, 16 August 2011 (diff | hist) . . (-25) . . 1979 USAMO
- 19:17, 16 August 2011 (diff | hist) . . (+212) . . N 1979 USAMO Problems/Problem 5 (Created page with "==Problem== Let <math>A_1,A_2,...,A_{n+1}</math> be distinct subsets of <math>[n]</math> with <math>|A_1|=|A_2|=\cdots =|A_n|=3</math>. Prove that <math>|A_i\cap A_j|=1</math> ...")
- 19:17, 16 August 2011 (diff | hist) . . (+1,352) . . N 1979 USAMO Problems/Problem 4 (Created page with "==Problem== <math>P</math> lies between the rays <math>OA</math> and <math>OB</math>. Find <math>Q</math> on <math>OA</math> and <math>R</math> on <math>OB</math> collinear with...")
- 19:16, 16 August 2011 (diff | hist) . . (+432) . . N 1979 USAMO Problems/Problem 3 (Created page with "==Problem== <math>a_1, a_2, \ldots, a_n</math> is an arbitrary sequence of positive integers. A member of the sequence is picked at random. Its value is <math>a</math>. Another...")
- 19:13, 16 August 2011 (diff | hist) . . (+409) . . N 1979 USAMO Problems/Problem 2 (Created page with "==Problem== <math>N</math> is the north pole. <math>A</math> and <math>B</math> are points on a great circle through <math>N</math> equidistant from <math>N</math>. <math>C</mat...")
- 19:02, 16 August 2011 (diff | hist) . . (+201) . . 1978 USAMO Problems (→Problem 5)
- 19:02, 16 August 2011 (diff | hist) . . (+181) . . 1978 USAMO Problems (→Problem 4)
- 19:01, 16 August 2011 (diff | hist) . . (+230) . . 1978 USAMO Problems (→Problem 3)
- 18:59, 16 August 2011 (diff | hist) . . (+302) . . 1978 USAMO Problems (→Problem 2)
- 18:59, 16 August 2011 (diff | hist) . . (+127) . . 1978 USAMO Problems (→Problem 1)
- 14:22, 15 August 2011 (diff | hist) . . (+389) . . 2004 AMC 8 Problems
- 13:55, 15 August 2011 (diff | hist) . . (-1,470) . . 2004 AMC 8 Problems (Blanked the page)
- 13:49, 15 August 2011 (diff | hist) . . (+383) . . N 1994 AJHSME Problems/Problem 25 (Created page with "==Problem== Find the sum of the digits in the answer to <math>\underbrace{9999\cdots 99}_{94\text{ nines}} \times \underbrace{4444\cdots 44}_{94\text{ fours}}</math> where a s...")
- 13:49, 15 August 2011 (diff | hist) . . (+500) . . N 1994 AJHSME Problems/Problem 24 (Created page with "==Problem== A <math>2</math> by <math>2</math> square is divided into four <math>1</math> by <math>1</math> squares. Each of the small squares is to be painted either green or ...")
- 13:48, 15 August 2011 (diff | hist) . . (+370) . . N 1994 AJHSME Problems/Problem 23 (Created page with "==Problem== If <math>X</math>, <math>Y</math> and <math>Z</math> are different digits, then the largest possible <math>3-</math>digit sum for <math>\begin{tabular}{ccc} X & X &...")
- 13:48, 15 August 2011 (diff | hist) . . (+747) . . N 1994 AJHSME Problems/Problem 22 (Created page with "==Problem== The two wheels shown below are spun and the two resulting numbers are added. The probability that the sum is even is <asy> draw(circle((0,0),3)); draw(circle((7,0)...")
- 13:47, 15 August 2011 (diff | hist) . . (+334) . . N 1994 AJHSME Problems/Problem 21 (Created page with "==Problem== A gumball machine contains <math>9</math> red, <math>7</math> white, and <math>8</math> blue gumballs. The least number of gumballs a person must buy to be sure of ...")
- 13:47, 15 August 2011 (diff | hist) . . (+455) . . N 1994 AJHSME Problems/Problem 20 (Created page with "==Problem== Let <math>W,X,Y</math> and <math>Z</math> be four different digits selected from the set <math>\{ 1,2,3,4,5,6,7,8,9\}.</math> If the sum <math>\dfrac{W}{X} + \dfra...")
- 13:46, 15 August 2011 (diff | hist) . . (+941) . . N 1994 AJHSME Problems/Problem 19 (Created page with "==Problem== Around the outside of a <math>4</math> by <math>4</math> square, construct four semicircles (as shown in the figure) with the four sides of the square as their diame...")
- 13:45, 15 August 2011 (diff | hist) . . (+1,815) . . N 1994 AJHSME Problems/Problem 18 (Created page with "==Problem== Mike leaves home and drives slowly east through city traffic. When he reaches the highway he drives east more rapidly until he reaches the shopping mall where he st...")
- 13:44, 15 August 2011 (diff | hist) . . (+569) . . N 1994 AJHSME Problems/Problem 17 (Created page with "==Problem== Pauline Bunyan can shovel snow at the rate of <math>20</math> cubic yards for the first hour, <math>19</math> cubic yards for the second, <math>18</math> for the thi...")
- 13:43, 15 August 2011 (diff | hist) . . (+290) . . N 1994 AJHSME Problems/Problem 16 (Created page with "==Problem== The perimeter of one square is <math>3</math> times the perimeter of another square. The area of the larger square is how many times the area of the smaller square?...")
- 13:42, 15 August 2011 (diff | hist) . . (+1,974) . . N 1994 AJHSME Problems/Problem 15 (Created page with "==Problem== If this path is to continue in the same pattern: <asy> unitsize(24); draw((0,0)--(1,0)--(1,1)--(2,1)--(2,0)--(3,0)--(3,1)--(4,1)--(4,0)--(5,0)--(5,1)--(6,1)); draw(...")
- 13:40, 15 August 2011 (diff | hist) . . (+356) . . N 1994 AJHSME Problems/Problem 14 (Created page with "==Problem== Two children at a time can play pairball. For <math>90</math> minutes, with only two children playing at time, five children take turns so that each one plays the s...")
- 13:40, 15 August 2011 (diff | hist) . . (+269) . . N 1994 AJHSME Problems/Problem 13 (Created page with "==Problem== The number halfway between <math>\dfrac{1}{6}</math> and <math>\dfrac{1}{4}</math> is <math>\text{(A)}\ \dfrac{1}{10} \qquad \text{(B)}\ \dfrac{1}{5} \qquad \text{(...")
- 13:40, 15 August 2011 (diff | hist) . . (+13) . . 1994 AJHSME Problems/Problem 12
- 13:39, 15 August 2011 (diff | hist) . . (+470) . . N 1994 AJHSME Problems/Problem 12 (Created page with "A lucky year is one in which at least one date, when written in the form month/day/year, has the following property: ''The product of the month times the day equals the last two ...")
- 13:39, 15 August 2011 (diff | hist) . . (+488) . . N 1994 AJHSME Problems/Problem 11 (Created page with "==Problem== Last summer <math>100</math> students attended basketball camp. Of those attending, <math>52</math> were boys and <math>48</math> were girls. Also, <math>40</math>...")
- 13:39, 15 August 2011 (diff | hist) . . (+240) . . N 1994 AJHSME Problems/Problem 10 (Created page with "==Problem== For how many positive integer values of <math>N</math> is the expression <math>\dfrac{36}{N+2}</math> an integer? <math>\text{(A)}\ 7 \qquad \text{(B)}\ 8 \qquad \t...")
- 13:38, 15 August 2011 (diff | hist) . . (+517) . . N 1994 AJHSME Problems/Problem 9 (Created page with "==Problem== A shopper buys a <math>100</math> dollar coat on sale for <math>20\% </math> off. An additional <math>5</math> dollars are taken off the sale price by using a disco...")
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