Mary's salary to Min's salary is 4 : 9. If Mary spends
56 of her salary, Min will have $1250 more than her. How much salary does Mary have?
| |
Mary |
Min |
Comparing Mary
and Min at first |
4x3 =
12 u |
9x3 =
27 u |
Before |
6x2 =
12 u |
|
Change |
- 5x2 =
- 10 u |
|
After |
1x2 =
2 u |
27 u |
Comparing Mary
and Min in the end |
|
$1250 more |
Mary's salary at first is repeated. Make Mary's salary at first the same. LCM of 4 and 6 is 12.
Amount that Min will have more than Mary in the end
= 27 u - 2 u
= 25 u
25 u = 1250
1 u = 1250 ÷ 25 = 50
Mary's salary
= 12 u
= 12 x 50
= $600
Answer(s): $600
