Abi's salary to Anna's salary is 2 : 9. If Abi spends
27 of her salary, she will have $1590 less than Anna. How much salary does Anna have?
| |
Abi |
Anna |
Comparing Abi
and Anna at first |
2x7 =
14 u |
9x7 =
63 u |
Before |
7x2 =
14 u |
|
Change |
- 2x2 =
- 4 u |
|
After |
5x2 =
10 u |
63 u |
Comparing Abi
and Anna in the end |
|
$1590 less |
Abi's salary at first is repeated. Make Abi's salary at first the same. LCM of 2 and 7 is 14.
Amount that Abi will have less than Anna in the end
= 63 u - 10 u
= 53 u
53 u = 1590
1 u = 1590 ÷ 53 = 30
Anna's salary
= 63 u
= 63 x 30
= $1890
Answer(s): $1890
