Min's and Abi's savings were in the ratio of 4 : 9. Both of them shared the cost of their mother's souvenir equally. Min's remaining savings was ¹₃ as much as Abi's savings. What percentage of her savings did Min spend? Correct the answer to 1 decimal place.

	Min	Abi	Difference
Before	4x2 = 8 u	9x2 = 18 u	5x2 = 10 u
Change	- 3 u	- 3 u
After	1x5 = 5 u	3x5 = 15 u	2x5 = 10 u

Since Min and Abi shared the cost of their mother's souvenir equally, the amount each paid for the souvenir is the same. 

So, the difference in the amounts between Min and Abi at first and in the end remains the same.  Make the difference in the amounts between Min and Abi at first and in the end the same. LCM of 5 and 2 is 10.

Amount that Min spent on the souvenir
= 8 u - 5 u
= 3 u

Percentage of her savings that Min spent
= ³₈ x 100%
≈ 37.5%

Answer(s): 37.5%