Victoria's and Hilda's savings were in the ratio of 4 : 7. Both of them shared the cost of their younger brother's gift equally. Victoria's remaining savings was ¹₅ as much as Hilda's savings. What percentage of her savings did Victoria spend? Correct the answer to 1 decimal place.

	Victoria	Hilda	Difference
Before	4x4 = 16 u	7x4 = 28 u	3x4 = 12 u
Change	- 13 u	- 13 u
After	1x3 = 3 u	5x3 = 15 u	4x3 = 12 u

Since Victoria and Hilda shared the cost of their younger brother's gift equally, the amount each paid for the gift is the same. 

So, the difference in the amounts between Victoria and Hilda at first and in the end remains the same.  Make the difference in the amounts between Victoria and Hilda at first and in the end the same. LCM of 3 and 4 is 12.

Amount that Victoria spent on the gift
= 16 u - 3 u
= 13 u

Percentage of her savings that Victoria spent
= ¹³₁₆ x 100%
≈ 81.3%

Answer(s): 81.3%