Three women, Winnie, Wendy and Hazel went on a shopping spree. 90% of Winnie's spending was equal to
12 of Wendy's spending. Hazel's spending was 60% more than Wendy's. If Wendy spent another $3051, she would spend the same amount of money as Hazel.
- Find the ratio of Winnie's spending to Wendy's to Hazel's.
- How much did Winnie spend?
Winnie |
Wendy |
Hazel |
5x5 |
9x5 |
|
|
5x9 |
8x9 |
25 u |
45 u |
72 u |
(a)
90%=
90100 =
910 910 of Winnie's spending is equal to
12 of Wendy's spending. Make the numerators the same. LCM of 9 and 1 is 9.
910 of Winnie's spending =
12 of Wendy's spending
910 of Winnie's spending =
1x92x9 of Wendy's spending
910 of Winnie's spending =
918 of Wendy's spending
Winnie : Wendy
10 : 18
5 : 9
Hazel's spending in percent when compared to Wendy's
= 100% + 60%
= 160%
Wendy : Hazel
100 : 160
5 : 8
Wendy's spending is the repeated identity. Make Wendy's spending the same. LCM of 9 and 5 is 45.
Winnie : Wendy : Hazel
25 : 45 : 72
(b)
|
Winnie |
Wendy |
Hazel |
Before |
25 u |
45 u |
72 u |
Change |
|
+ 27 u |
|
After |
25 u |
72 u |
72 u |
Additional amount that Wendy would have to spend to be the same as Hazel
= 72 u - 45 u
= 27 u
27 u = 3051
1 u = 3051 ÷ 27 = 113
Amount that Winnie spent
= 25 u
= 25 x 113
= $2825
Answer(s): (a) 25 : 45 : 72; (b) $2825