Winnie's and Min's savings were in the ratio of 2 : 7. Both of them shared the cost of their uncle's gift equally. Winnie's remaining savings was ¹₅ as much as Min's savings. What percentage of her savings did Min spend? Correct the answer to 1 decimal place.

	Winnie	Min	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 Winnie and Min shared the cost of their uncle's gift equally, the amount each paid for the gift is the same. 

So, the difference in the amounts between Winnie and Min at first and in the end remains the same.  Make the difference in the amounts between Winnie and Min at first and in the end the same. LCM of 5 and 4 is 20.

Amount that Min spent on the gift
= 28 u - 25 u
= 3 u

Percentage of her savings that Min spent
= ³₂₈ x 100%
≈ 10.7%

Answer(s): 10.7%