Cathy's salary to Min's salary is 3 : 8. If Cathy spends
34 of her salary, she will have $3480 less than Min. How much salary does Min have?
| |
Cathy |
Min |
Comparing Cathy
and Min at first |
3x4 =
12 u |
8x4 =
32 u |
Before |
4x3 =
12 u |
|
Change |
- 3x3 =
- 9 u |
|
After |
1x3 =
3 u |
32 u |
Comparing Cathy
and Min in the end |
|
$3480 less |
Cathy's salary at first is repeated. Make Cathy's salary at first the same. LCM of 3 and 4 is 12.
Amount that Cathy will have less than Min in the end
= 32 u - 3 u
= 29 u
29 u = 3480
1 u = 3480 ÷ 29 = 120
Min's salary
= 32 u
= 32 x 120
= $3840
Answer(s): $3840
