2015 AMC 10B Problems/Problem 3
Problem
Isaac has written down one integer two times and another integer three times. The sum of the five numbers is , and one of the numbers is What is the other number?
Solution
Let the first number be and the second be . We have . We are given one of the numbers is . If were to be , would not be an integer, thus . , which gives .
Video Solution 1
~Education, the Study of Everything
Video Solution
~savannahsolver
See Also
2015 AMC 10B (Problems • Answer Key • Resources) | ||
Preceded by Problem 2 |
Followed by Problem 4 | |
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.