Difference between revisions of "2014 CEMC Gauss (Grade 7) Problems/Problem 3"
|  (Created page with "== Problem== Five times a number equals one hundred. The number is  <math> \textbf{(A)}\ 50\qquad\textbf{(B)}\ 10\qquad\textbf{(C)}\ 15\qquad\textbf{(D)}\ 25\qquad\textbf{(E)}...") | |||
| Line 13: | Line 13: | ||
| To find the solution, we can start by multiply <math>20</math> by <math>5</math> since it is one of the middle numbers. | To find the solution, we can start by multiply <math>20</math> by <math>5</math> since it is one of the middle numbers. | ||
| − | <math>20  | + | <math>20 \times 5 = 100</math>, which happens to be equal to one hundred. | 
| Thus, the answer is <math>\boxed {\textbf {(E) } 20}</math>. | Thus, the answer is <math>\boxed {\textbf {(E) } 20}</math>. | ||
| + | {{CEMC box|year=2014|competition=Gauss (Grade 7)|num-b=2|num-a=4}} | ||
Latest revision as of 12:54, 18 October 2025
Problem
Five times a number equals one hundred. The number is
 
Solution 1
Let  be the number that we are looking for. Setting up an equation, we have:
 be the number that we are looking for. Setting up an equation, we have:
 
 
Solution 2 (answer choices)
To find the solution, we can start by multiply  by
 by  since it is one of the middle numbers.
 since it is one of the middle numbers.
 , which happens to be equal to one hundred.
, which happens to be equal to one hundred.
Thus, the answer is  .
.
| 2014 CEMC Gauss (Grade 7) (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 | ||
| CEMC Gauss (Grade 7) | ||
