There are 16 more teachers in School F than in School G. After 30% of the teachers left School F and 50% of teachers left School G, the number of teachers who remained in School F is seven times that of the number of teachers in School G. Find the number of teachers in School F at first.
|
F |
G |
Before |
10 u |
2 u |
Change |
- 3 u |
- 1 u |
After |
7 u |
1 u |
30% =
30100 =
310 50% =
50100 =
32Number of more teachers in School F than in School G
= 10 u - 2 u
= 8 u
8 u = 16
1 u = 16 ÷ 8 = 2
Number of teachers in School F at first
= 10 u
= 10 x 2
= 20
Answer(s): 20