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

	Jean	Anna	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 Jean and Anna shared the cost of their auntie's gift equally, the amount each paid for the gift is the same. 

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

Amount that Jean spent on the gift
= 8 u - 5 u
= 3 u

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

Answer(s): 37.5%