2010 UNCO Math Contest II Problems/Problem 6
Problem
is a -digit number . is a -digit number formed by augmenting with a on the right, i.e. .
is another -digit number formed by placing a on the left , i.e. . If is three times , what is the number ?
Solution
What this problem is basically saying is that . This can be simplified to .
See also
2010 UNCO Math Contest II (Problems • Answer Key • Resources) | ||
Preceded by Problem 5 |
Followed by Problem 7 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
All UNCO Math Contest Problems and Solutions |