Cathy's and Victoria's savings were in the ratio of 2 : 7. Both of them shared the cost of their grandfather's present equally. Cathy's remaining savings was
15 as much as Victoria's savings. What percentage of her savings did Victoria spend? Correct the answer to 1 decimal place.
|
Cathy |
Victoria |
Difference |
Before |
2x4 = 8 u |
7x4 = 28 u |
5x4 = 20 u |
Change |
- 3 u |
- 3 u |
|
After |
1x5 = 5 u |
5x5 = 25 u |
4x5 = 20 u |
Since Cathy and Victoria shared the cost of their grandfather's present equally, the amount each paid for the present is the same.
So, the difference in the amounts between Cathy and Victoria at first and in the end remains the same. Make the difference in the amounts between Cathy and Victoria at first and in the end the same. LCM of 5 and 4 is 20.
Amount that Victoria spent on the present
= 28 u - 25 u
= 3 u
Percentage of her savings that Victoria spent
=
328 x 100%
≈ 10.7%
Answer(s): 10.7%