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

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

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

Amount that Zara spent on the present
= 8 u - 5 u
= 3 u

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

Answer(s): 37.5%