Abi's salary to Jen's salary is 5 : 7. If Abi spends
47 of her salary, Jen will have $3400 more than her. How much salary does Abi have?
| |
Abi |
Jen |
Comparing Abi
and Jen at first |
5x7 =
35 u |
7x7 =
49 u |
Before |
7x5 =
35 u |
|
Change |
- 4x5 =
- 20 u |
|
After |
3x5 =
15 u |
49 u |
Comparing Abi
and Jen in the end |
|
$3400 more |
Abi's salary at first is repeated. Make Abi's salary at first the same. LCM of 5 and 7 is 35.
Amount that Jen will have more than Abi in the end
= 49 u - 15 u
= 34 u
34 u = 3400
1 u = 3400 ÷ 34 = 100
Abi's salary
= 35 u
= 35 x 100
= $3500
Answer(s): $3500
