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