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