PSLE
Xuan and Raeann folded paper balls over two days. On Tuesday, Xuan folded 48 paper balls more than Raeann. On Wednesday, Xuan folded another 16 paper balls and Raeann folded another 4. At the end of the two days, Xuan made ⁷₉ of the total number of balls. What was the number of paper balls that Raeann folded?

	Xuan	Raeann	Difference
Before	1 u + 48	1 u	48
Change	+ 16	+ 4
After	1 u + 64	1 u + 4	60
Comparing between Xuan and Raeann in the end	7 p	2 p	5 p

Difference between the number of paper balls that Xuan and Raeann folded in the end is repeated.

Difference between the number of paper balls that Xuan and Raeann folded in the end
= 7 p - 2 p
= 5 p

Difference between the number of paper balls that Xuan and Raeann folded in the end
= (1 u + 64) - (1 u + 4)
= 1 u + 64 - 1 u - 4
= 64 - 4
= 60

5 p = 60

1 p = 60 ÷ 5 = 12

Number of paper balls that Raeann folded
= 2 p
= 2 x 12
= 24

Answer(s): 24