Elijah had 75 pomegranates and 63 starfruits at first. He used ³₅ of the pomegranates and ⁵₇ of the starfruits. He then bought some more starfruits. In the end, ¹₅ of the fruits he had left were pomegranates. How many starfruits did he buy?

	Pomegranates	Starfruits	Total
Before	75	63
Change 1	- 45	- 45
After 1	30	18
Change 2		+ some
After 2	1 u	4 u	5 u

Number of pomegranates that Elijah used
= ³₅ x 75
= 45

Number of pomegranates that Elijah had left
= 75 - 45
= 30

Number of starfruits that Elijah used
= ⁵₇ x 63
= 45

Number of starfruits that Elijah had left
= 63 - 45
= 18

Fraction of the fruits left that were starfruits
= 1 - ¹₅
= ⁴₅

Number of pomegranates left = 1 u = 30

Number of starfruits left in the end
= 4 u
= 4 x 30
= 120

Number of starfruits that Elijah bought
= 120 - 18
= 102

Answer(s): 102