Gabby's salary to Tiffany's salary is 2 : 7. If Gabby spends
56 of her salary, Tiffany will have $1400 more than her. How much salary does Gabby have?
| |
Gabby |
Tiffany |
Comparing Gabby
and Tiffany at first |
2x3 =
6 u |
7x3 =
21 u |
Before |
6x1 =
6 u |
|
Change |
- 5x1 =
- 5 u |
|
After |
1x1 =
1 u |
21 u |
Comparing Gabby
and Tiffany in the end |
|
$1400 more |
Gabby's salary at first is repeated. Make Gabby's salary at first the same. LCM of 2 and 6 is 6.
Amount that Tiffany will have more than Gabby in the end
= 21 u - 1 u
= 20 u
20 u = 1400
1 u = 1400 ÷ 20 = 70
Gabby's salary
= 6 u
= 6 x 70
= $420
Answer(s): $420
