Difference between revisions of "1994 AJHSME Problems"
5849206328x (talk | contribs) |
5849206328x (talk | contribs) |
||
Line 16: | Line 16: | ||
== Problem 3 == | == Problem 3 == | ||
+ | |||
+ | Each day Maria must work <math>8</math> hours. This does not include the <math>45</math> minutes she takes for lunch. If she begins working at <math>\text{7:25 A.M.}</math> and takes her lunch break at noon, then her working day will end at | ||
+ | |||
+ | <math>\text{(A)}\ \text{3:40 P.M.} \qquad \text{(B)}\ \text{3:55 P.M.} \qquad \text{(C)}\ \text{4:10 P.M.} \qquad \text{(D)}\ \text{4:25 P.M.} \qquad \text{(E)}\ \text{4:40 P.M.}</math> | ||
[[1994 AJHSME Problems/Problem 3|Solution]] | [[1994 AJHSME Problems/Problem 3|Solution]] | ||
Line 24: | Line 28: | ||
== Problem 5 == | == Problem 5 == | ||
+ | |||
+ | Given that <math>\text{1 mile} = \text{8 furlongs}</math> and <math>\text{1 furlong} = \text{40 rods}</math>, the number of rods in one mile is | ||
+ | |||
+ | <math>\text{(A)}\ 5 \qquad \text{(B)}\ 320 \qquad \text{(C)}\ 660 \qquad \text{(D)}\ 1760 \qquad \text{(E)}\ 5280</math> | ||
[[1994 AJHSME Problems/Problem 5|Solution]] | [[1994 AJHSME Problems/Problem 5|Solution]] | ||
== Problem 6 == | == Problem 6 == | ||
+ | |||
+ | The unit's digit (one's digit) of the product of any six consecutive positive whole numbers is | ||
+ | |||
+ | <math>\text{(A)}\ 0 \qquad \text{(B)}\ 2 \qquad \text{(C)}\ 4 \qquad \text{(D)}\ 6 \qquad \text{(E)}\ 8</math> | ||
[[1994 AJHSME Problems/Problem 6|Solution]] | [[1994 AJHSME Problems/Problem 6|Solution]] | ||
Line 36: | Line 48: | ||
== Problem 8 == | == Problem 8 == | ||
+ | |||
+ | For how many three-digit whole numbers does the sum of the digits equal <math>25</math>? | ||
+ | |||
+ | <math>\text{(A)}\ 2 \qquad \text{(B)}\ 4 \qquad \text{(C)}\ 6 \qquad \text{(D)}\ 8 \qquad \text{(E)}\ 10</math> | ||
[[1994 AJHSME Problems/Problem 8|Solution]] | [[1994 AJHSME Problems/Problem 8|Solution]] | ||
== Problem 9 == | == Problem 9 == | ||
+ | |||
+ | 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 discount coupon. A sales tax of <math>8\% </math> is paid on the final selling price. The total amount the shopper pays for the coat is | ||
+ | |||
+ | <math>\text{(A)}\ \text{81.00 dollars} \qquad \text{(B)}\ \text{81.40 dollars} \qquad \text{(C)}\ \text{82.00 dollars} \qquad \text{(D)}\ \text{82.08 dollars} \qquad \text{(E)}\ \text{82.40 dollars}</math> | ||
[[1994 AJHSME Problems/Problem 9|Solution]] | [[1994 AJHSME Problems/Problem 9|Solution]] | ||
== Problem 10 == | == Problem 10 == | ||
+ | |||
+ | 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 \text{(C)}\ 9 \qquad \text{(D)}\ 10 \qquad \text{(E)}\ 12</math> | ||
[[1994 AJHSME Problems/Problem 10|Solution]] | [[1994 AJHSME Problems/Problem 10|Solution]] | ||
== Problem 11 == | == Problem 11 == | ||
+ | |||
+ | 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> students were from Jonas Middle School and <math>60</math> were from Clay Middle School. Twenty of the girls were from Jonas Middle School. How many of the boys were from Clay Middle School? | ||
+ | |||
+ | <math>\text{(A)}\ 20 \qquad \text{(B)}\ 32 \qquad \text{(C)}\ 40 \qquad \text{(D)}\ 48 \qquad \text{(E)}\ 52</math> | ||
[[1994 AJHSME Problems/Problem 11|Solution]] | [[1994 AJHSME Problems/Problem 11|Solution]] | ||
Line 56: | Line 84: | ||
== Problem 13 == | == Problem 13 == | ||
+ | |||
+ | 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{(C)}\ \dfrac{5}{24} \qquad \text{(D)}\ \dfrac{7}{24} \qquad \text{(E)}\ \dfrac{5}{12}</math> | ||
[[1994 AJHSME Problems/Problem 13|Solution]] | [[1994 AJHSME Problems/Problem 13|Solution]] | ||
== Problem 14 == | == Problem 14 == | ||
+ | |||
+ | 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 same amount of time. The number of minutes each child plays is | ||
+ | |||
+ | <math>\text{(A)}\ 9 \qquad \text{(B)}\ 10 \qquad \text{(C)}\ 18 \qquad \text{(D)}\ 20 \qquad \text{(E)}\ 36</math> | ||
[[1994 AJHSME Problems/Problem 14|Solution]] | [[1994 AJHSME Problems/Problem 14|Solution]] | ||
Line 68: | Line 104: | ||
== Problem 16 == | == Problem 16 == | ||
+ | |||
+ | 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? | ||
+ | |||
+ | <math>\text{(A)}\ 2 \qquad \text{(B)}\ 3 \qquad \text{(C)}\ 4 \qquad \text{(D)}\ 6 \qquad \text{(E)}\ 9</math> | ||
[[1994 AJHSME Problems/Problem 16|Solution]] | [[1994 AJHSME Problems/Problem 16|Solution]] | ||
== Problem 17 == | == Problem 17 == | ||
+ | |||
+ | 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 third, etc., always shoveling one cubic yard less per hour than the previous hour. If her driveway is <math>4</math> yards wide, <math>10</math> yards long, and covered with snow <math>3</math> yards deep, then the number of hours it will take her to shovel it clean is closest to | ||
+ | |||
+ | <math>\text{(A)}\ 4 \qquad \text{(B)}\ 5 \qquad \text{(C)}\ 6 \qquad \text{(D)}\ 7 \qquad \text{(E)}\ 12</math> | ||
[[1994 AJHSME Problems/Problem 17|Solution]] | [[1994 AJHSME Problems/Problem 17|Solution]] | ||
Line 84: | Line 128: | ||
== Problem 20 == | == Problem 20 == | ||
+ | |||
+ | Let <math>W,X,Y</math> and <math>Z</math> be four different digits selected from the set | ||
+ | |||
+ | <center><math>\{ 1,2,3,4,5,6,7,8,9\}.</math></center> | ||
+ | |||
+ | If the sum <math>\dfrac{W}{X} + \dfrac{Y}{Z}</math> is to be as small as possible, then <math>\dfrac{W}{X} + \dfrac{Y}{Z}</math> must equal | ||
+ | |||
+ | <math>\text{(A)}\ \dfrac{2}{17} \qquad \text{(B)}\ \dfrac{3}{17} \qquad \text{(C)}\ \dfrac{17}{72} \qquad \text{(D)}\ \dfrac{25}{72} \qquad \text{(E)}\ \dfrac{13}{36}</math> | ||
[[1994 AJHSME Problems/Problem 20|Solution]] | [[1994 AJHSME Problems/Problem 20|Solution]] |
Revision as of 17:59, 19 April 2010
Contents
- 1 Problem 1
- 2 Problem 2
- 3 Problem 3
- 4 Problem 4
- 5 Problem 5
- 6 Problem 6
- 7 Problem 7
- 8 Problem 8
- 9 Problem 9
- 10 Problem 10
- 11 Problem 11
- 12 Problem 12
- 13 Problem 13
- 14 Problem 14
- 15 Problem 15
- 16 Problem 16
- 17 Problem 17
- 18 Problem 18
- 19 Problem 19
- 20 Problem 20
- 21 Problem 21
- 22 Problem 22
- 23 Problem 23
- 24 Problem 24
- 25 Problem 25
- 26 See also
Problem 1
Which of the following is the largest?
Problem 2
Problem 3
Each day Maria must work hours. This does not include the minutes she takes for lunch. If she begins working at and takes her lunch break at noon, then her working day will end at
Problem 4
Problem 5
Given that and , the number of rods in one mile is
Problem 6
The unit's digit (one's digit) of the product of any six consecutive positive whole numbers is
Problem 7
Problem 8
For how many three-digit whole numbers does the sum of the digits equal ?
Problem 9
A shopper buys a dollar coat on sale for off. An additional dollars are taken off the sale price by using a discount coupon. A sales tax of is paid on the final selling price. The total amount the shopper pays for the coat is
Problem 10
For how many positive integer values of is the expression an integer?
Problem 11
Last summer students attended basketball camp. Of those attending, were boys and were girls. Also, students were from Jonas Middle School and were from Clay Middle School. Twenty of the girls were from Jonas Middle School. How many of the boys were from Clay Middle School?
Problem 12
Problem 13
The number halfway between and is
Problem 14
Two children at a time can play pairball. For minutes, with only two children playing at time, five children take turns so that each one plays the same amount of time. The number of minutes each child plays is
Problem 15
Problem 16
The perimeter of one square is times the perimeter of another square. The area of the larger square is how many times the area of the smaller square?
Problem 17
Pauline Bunyan can shovel snow at the rate of cubic yards for the first hour, cubic yards for the second, for the third, etc., always shoveling one cubic yard less per hour than the previous hour. If her driveway is yards wide, yards long, and covered with snow yards deep, then the number of hours it will take her to shovel it clean is closest to
Problem 18
Problem 19
Problem 20
Let and be four different digits selected from the set
If the sum is to be as small as possible, then must equal
Problem 21
Problem 22
Problem 23
Problem 24
Problem 25
See also
1994 AJHSME (Problems • Answer Key • Resources) | ||
Preceded by 1993 AJHSME |
Followed by 1995 AJHSME | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AJHSME/AMC 8 Problems and Solutions |