60% of the mini cupcakes in Packet Q were vanilla mini cupcakes and the rest were strawberry mini cupcakes. Packet R had 25% more vanilla mini cupcakes than Packet Q and twice as many mini cupcakes than the total number of mini cupcakes in Packet Q. Find the percentage of the strawberry mini cupcakes in Packet R that would need to be transferred into Packet Q, so that there were an equal number of vanilla and strawberry mini cupcakes in Packet Q.

	Packet Q		Packet R
	Vanilla	Strawberry	Vanilla	Strawberry
	5 u		10 u
Before	3 u	2 u	3.75 u	6.25 u
Change		+ 1 u		- 1 u
After	3 u	3 u	3.75 u	5.25 u

60% = ⁶⁰₁₀₀ = ³₅
100 %+ 25% = 125%

 Total number of mini cupcakes in Packet Q
= 3 u + 2 u
= 5 u

Total number of mini cupcakes in Packet R
= 2 x 5 u 
= 10 u

Number of vanilla mini cupcakes in Packet R
= 125% x 3 u
=  ¹²⁵₁₀₀ x 3 u
= 3.75 u

Number of vanilla mini cupcakes in Packet R
= 10 u - 3.75 u
= 6.25 u

Number of strawberry mini cupcakes to be transferred from Packet R to Packet Q
= 3 u - 2 u
= 1 u

Percentage of mini cupcakes to be transferred from Packet R
= ¹_6.25 x 100%
= 16%

Answer(s): 16%