Marion's and Hilda's savings were in the ratio of 2 : 7. Both of them shared the cost of their younger sister's gift equally. Marion's remaining savings was
15 as much as Hilda's savings. What percentage of her savings did Marion spend? Correct the answer to 1 decimal place.
|
Marion |
Hilda |
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 Marion and Hilda shared the cost of their younger sister's gift equally, the amount each paid for the gift is the same.
So, the difference in the amounts between Marion and Hilda at first and in the end remains the same. Make the difference in the amounts between Marion and Hilda at first and in the end the same. LCM of 5 and 4 is 20.
Amount that Marion spent on the gift
= 8 u - 5 u
= 3 u
Percentage of her savings that Marion spent
=
38 x 100%
≈ 37.5%
Answer(s): 37.5%