1997 PMWC Problems/Problem I7
Problem
of girls and
of boys in a class got an
. If there are only
students in the class who got
s and the ratio of boys and girls in the class is
, how many students are there in the class?
Solution
Substituting, . So there are 12 boys, and
students in the class.
See Also
1997 PMWC (Problems) | ||
Preceded by Problem I6 |
Followed by Problem I8 | |
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 |