Gem's and Marion's savings were in the ratio of 4 : 9. Both of them shared the cost of their grandfather's gift equally. Gem's remaining savings was ²₅ as much as Marion's savings. What percentage of her savings did Marion spend? Correct the answer to 1 decimal place.

	Gem	Marion	Difference
Before	4x3 = 12 u	9x3 = 27 u	5x3 = 15 u
Change	- 2 u	- 2 u
After	2x5 = 10 u	5x5 = 25 u	3x5 = 15 u

Since Gem and Marion shared the cost of their grandfather's gift equally, the amount each paid for the gift is the same. 

So, the difference in the amounts between Gem and Marion at first and in the end remains the same.  Make the difference in the amounts between Gem and Marion at first and in the end the same. LCM of 5 and 3 is 15.

Amount that Marion spent on the gift
= 27 u - 25 u
= 2 u

Percentage of her savings that Marion spent
= ²₂₇ x 100%
≈ 7.4%

Answer(s): 7.4%