Yen's salary to Jean's salary is 3 : 8. If Yen spends
25 of her salary, she will have $3720 less than Jean. How much salary does Jean have?
| |
Yen |
Jean |
Comparing Yen
and Jean at first |
3x5 =
15 u |
8x5 =
40 u |
Before |
5x3 =
15 u |
|
Change |
- 2x3 =
- 6 u |
|
After |
3x3 =
9 u |
40 u |
Comparing Yen
and Jean in the end |
|
$3720 less |
Yen's salary at first is repeated. Make Yen's salary at first the same. LCM of 3 and 5 is 15.
Amount that Yen will have less than Jean in the end
= 40 u - 9 u
= 31 u
31 u = 3720
1 u = 3720 ÷ 31 = 120
Jean's salary
= 40 u
= 40 x 120
= $4800
Answer(s): $4800
