Difference between revisions of "1997 PMWC Problems/Problem I6"
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== Problem == | == Problem == | ||
| − | John and Mary went to a book shop and bought some exercise books. They had <math> | + | John and Mary went to a book shop and bought some exercise books. They had <math>\textdollar 100</math> each. John could buy <math>7</math> large and <math>4</math> small ones. Mary could buy <math>5</math> large and <math>6</math> small ones and had <math>\textdollar 5</math> left. How much was a small exercise book? |
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== Solution == | == Solution == | ||
Latest revision as of 13:23, 20 April 2014
Problem
John and Mary went to a book shop and bought some exercise books. They had 
each. John could buy 
large and 
small ones. Mary could buy 
large and 
small ones and had 
left. How much was a small exercise book?
Solution
Plugging them back in, we see that they work.
See Also
| 1997 PMWC (Problems) | ||
| Preceded by Problem I5 |
Followed by Problem I7 | |
| I: 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 T: 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
