80% of the lollipops in Packet D were cheese lollipops and the rest were vanilla lollipops. Packet E had 30% more cheese lollipops than Packet D and twice as many lollipops than the total number of lollipops in Packet D. Find the percentage of the vanilla lollipops in Packet E that would need to be transferred into Packet D, so that there were an equal number of cheese and vanilla lollipops in Packet D.

	Packet D		Packet E
	Cheese	Vanilla	Cheese	Vanilla
	5 u		10 u
Before	4 u	1 u	5.2 u	4.8 u
Change		+ 3 u		- 3 u
After	4 u	4 u	5.2 u	1.8 u

80% = ⁸⁰₁₀₀ = ⁴₅
100 %+ 30% = 130%

 Total number of lollipops in Packet D
= 4 u + 1 u
= 5 u

Total number of lollipops in Packet E
= 2 x 5 u 
= 10 u

Number of cheese lollipops in Packet E
= 130% x 4 u
=  ¹³⁰₁₀₀ x 4 u
= 5.2 u

Number of cheese lollipops in Packet E
= 10 u - 5.2 u
= 4.8 u

Number of vanilla lollipops to be transferred from Packet E to Packet D
= 4 u - 1 u
= 3 u

Percentage of lollipops to be transferred from Packet E
= ³_4.8 x 100%
= 62.5%

Answer(s): 62.5%