PSLE
Jean and Shannon folded paper balls over two days. On Friday, Jean folded 17 paper balls more than Shannon. On Saturday, Jean folded another 23 paper balls and Shannon folded another 18. At the end of the two days, Jean made ⁵₈ of the total number of balls. What was the number of paper balls that Shannon folded?

	Jean	Shannon	Difference
Before	1 u + 17	1 u	17
Change	+ 23	+ 18
After	1 u + 40	1 u + 18	22
Comparing between Jean and Shannon in the end	5 p	3 p	2 p

Difference between the number of paper balls that Jean and Shannon folded in the end is repeated.

Difference between the number of paper balls that Jean and Shannon folded in the end
= 5 p - 3 p
= 2 p

Difference between the number of paper balls that Jean and Shannon folded in the end
= (1 u + 40) - (1 u + 18)
= 1 u + 40 - 1 u - 18
= 40 - 18
= 22

2 p = 22

1 p = 22 ÷ 2 = 11

Number of paper balls that Shannon folded
= 3 p
= 3 x 11
= 33

Answer(s): 33