PSLE
Pamela and Min folded paper stars over two days. On Wednesday, Pamela folded 72 paper stars more than Min. On Thursday, Pamela folded another 12 paper stars and Min folded another 24. At the end of the two days, Pamela made ⁷₁₀ of the total number of stars. What was the number of paper stars that Pamela folded?

	Pamela	Min	Difference
Before	1 u + 72	1 u	72
Change	+ 12	+ 24
After	1 u + 84	1 u + 24	60
Comparing between Pamela and Min in the end	7 p	3 p	4 p

Difference between the number of paper stars that Pamela and Min folded in the end is repeated.

Difference between the number of paper stars that Pamela and Min folded in the end
= 7 p - 3 p
= 4 p

Difference between the number of paper stars that Pamela and Min folded in the end
= (1 u + 84) - (1 u + 24)
= 1 u + 84 - 1 u - 24
= 84 - 24
= 60

4 p = 60

1 p = 60 ÷ 4 = 15

Number of paper stars that Pamela folded
= 7 p
= 7 x 15
= 105

Answer(s): 105