There are 46 more teachers in School M than in School N. After 25% of the teachers left School M and 50% of teachers left School N, the number of teachers who remained in School M is thrice that of the number of teachers in School N. Find the number of teachers in School M at first.
|
M |
N |
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 M than in School N
= 4 u - 2 u
= 2 u
2 u = 46
1 u = 46 ÷ 2 = 23
Number of teachers in School M at first
= 4 u
= 4 x 23
= 92
Answer(s): 92