Winnie's salary is 10% less than Tiffany's salary and 40% less than Victoria's salary. If Tiffany's salary is $450 less than that of Victoria's salary,
- Find Tiffany's salary.
- Given that Tiffany received a 15% salary increment, find her new salary.
(a)
100% - 10% = 90%
90% =
90100 =
910 100% - 40% = 60%
60% =
60100 =
35
| Winnie |
Tiffany |
Victoria |
| 9x3 |
10x3 |
|
| 3x9 |
|
5x9 |
| 27 u |
30 u |
45 u |
Winnie's salary is the repeated identity. Make Winnie's salary the same. LCM of 9 and 3 is 27.
Amount that Tiffany's salary is less than Victoria's salary
= 45 u - 30 u
= 15 u
15 u = 450
1 u = 450 ÷ 15 = 30
Tiffany's salary
= 30 u
= 30 x 30
= $900
(b)
Percentage of Tiffany's salary after 15% salary increment
= 100% + 15%
= 115%
Tiffany's new salary
= 115% x 900
=
115100 x 900
= $1035
Answer(s): (a) $900; (b) $1035
