PSLE
Shiyun and Lynn folded paper stars over two days. On Saturday, Shiyun folded 48 paper stars more than Lynn. On Sunday, Shiyun folded another 32 paper stars and Lynn folded another 15. At the end of the two days, Shiyun made ⁷₉ of the total number of stars. What was the number of paper stars that Lynn folded?

	Shiyun	Lynn	Difference
Before	1 u + 48	1 u	48
Change	+ 32	+ 15
After	1 u + 80	1 u + 15	65
Comparing between Shiyun and Lynn in the end	7 p	2 p	5 p

Difference between the number of paper stars that Shiyun and Lynn folded in the end is repeated.

Difference between the number of paper stars that Shiyun and Lynn folded in the end
= 7 p - 2 p
= 5 p

Difference between the number of paper stars that Shiyun and Lynn folded in the end
= (1 u + 80) - (1 u + 15)
= 1 u + 80 - 1 u - 15
= 80 - 15
= 65

5 p = 65

1 p = 65 ÷ 5 = 13

Number of paper stars that Lynn folded
= 2 p
= 2 x 13
= 26

Answer(s): 26