Difference between revisions of "2005 AMC 10A Problems/Problem 7"
(→Video Solution) |
m (→Video Solution) |
||
(5 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
==Problem== | ==Problem== | ||
− | + | Josh and Mike live <math>13</math> miles apart. Yesterday Josh started to ride his bicycle toward Mike's house. A little later Mike started to ride his bicycle toward Josh's house. When they met, Josh had ridden for twice the length of time as Mike and at four-fifths of Mike's rate. How many miles had Mike ridden when they met? | |
− | <math> \mathrm{(A) \ } | + | <math> \mathrm{(A) \ } 2\qquad \mathrm{(B) \ } 5\qquad \mathrm{(C) \ } 3\qquad \mathrm{(D) \ } 6\qquad \mathrm{(E) \ } 4 </math> |
==Solution== | ==Solution== | ||
− | Let <math>m</math> be the distance in miles that | + | Let <math>m</math> be the distance in miles that Mike rode. |
− | Since | + | Since Josh rode for twice the length of time as Mike and at four-fifths of Mike's rate, he rode <math>2\cdot\frac{4}{5}\cdot m = \frac{8}{5}m</math> miles. |
Since their combined distance was <math>13</math> miles, | Since their combined distance was <math>13</math> miles, | ||
Line 18: | Line 18: | ||
==Video Solution== | ==Video Solution== | ||
− | - | + | - Wrong link was added here |
+ | |||
+ | - No video link as of now | ||
==See also== | ==See also== |
Latest revision as of 11:46, 22 July 2021
Contents
Problem
Josh and Mike live miles apart. Yesterday Josh started to ride his bicycle toward Mike's house. A little later Mike started to ride his bicycle toward Josh's house. When they met, Josh had ridden for twice the length of time as Mike and at four-fifths of Mike's rate. How many miles had Mike ridden when they met?
Solution
Let be the distance in miles that Mike rode.
Since Josh rode for twice the length of time as Mike and at four-fifths of Mike's rate, he rode miles.
Since their combined distance was miles,
Video Solution
- Wrong link was added here
- No video link as of now
See also
2005 AMC 10A (Problems • Answer Key • Resources) | ||
Preceded by Problem 6 |
Followed by Problem 8 | |
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 AMC 10 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.