Irene's salary to Zoe's salary is 3 : 8. If Irene spends
56 of her salary, Zoe will have $1050 more than her. How much salary does Irene have?
| |
Irene |
Zoe |
Comparing Irene
and Zoe at first |
3x2 =
6 u |
8x2 =
16 u |
Before |
6x1 =
6 u |
|
Change |
- 5x1 =
- 5 u |
|
After |
1x1 =
1 u |
16 u |
Comparing Irene
and Zoe in the end |
|
$1050 more |
Irene's salary at first is repeated. Make Irene's salary at first the same. LCM of 3 and 6 is 6.
Amount that Zoe will have more than Irene in the end
= 16 u - 1 u
= 15 u
15 u = 1050
1 u = 1050 ÷ 15 = 70
Irene's salary
= 6 u
= 6 x 70
= $420
Answer(s): $420
