PSLE
Nora and Elyse folded paper balls over two days. On Saturday, Nora folded 24 paper balls more than Elyse. On Sunday, Nora folded another 19 paper balls and Elyse folded another 11. At the end of the two days, Nora made ⁷₁₀ of the total number of balls. What was the number of paper balls that Nora folded?

	Nora	Elyse	Difference
Before	1 u + 24	1 u	24
Change	+ 19	+ 11
After	1 u + 43	1 u + 11	32
Comparing between Nora and Elyse in the end	7 p	3 p	4 p

Difference between the number of paper balls that Nora and Elyse folded in the end is repeated.

Difference between the number of paper balls that Nora and Elyse folded in the end
= 7 p - 3 p
= 4 p

Difference between the number of paper balls that Nora and Elyse folded in the end
= (1 u + 43) - (1 u + 11)
= 1 u + 43 - 1 u - 11
= 43 - 11
= 32

4 p = 32

1 p = 32 ÷ 4 = 8

Number of paper balls that Nora folded
= 7 p
= 7 x 8
= 56

Answer(s): 56