There are 24 more teachers in School L than in School M. After 20% of the teachers left School L and 50% of teachers left School M, the number of teachers who remained in School L is four times that of the number of teachers in School M. Find the number of teachers in School L at first.
|
L |
M |
Before |
5 u |
2 u |
Change |
- 1 u |
- 1 u |
After |
4 u |
1 u |
20% =
20100 =
15 50% =
50100 =
12Number of more teachers in School L than in School M
= 5 u - 2 u
= 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Number of teachers in School L at first
= 5 u
= 5 x 8
= 40
Answer(s): 40