There are 20 more teachers in School G than in School H. After 25% of the teachers left School G and 50% of teachers left School H, the number of teachers who remained in School G is thrice that of the number of teachers in School H. Find the number of teachers in School G at first.
|
G |
H |
Before |
4 u |
2 u |
Change |
- 1 u |
- 1 u |
After |
3 u |
1 u |
25% =
25100 =
14 50% =
50100 =
12Number of more teachers in School G than in School H
= 4 u - 2 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Number of teachers in School G at first
= 4 u
= 4 x 10
= 40
Answer(s): 40