PSLE
Fiona and Tiffany folded paper stars over two days. On Thursday, Fiona folded 18 paper stars more than Tiffany. On Friday, Fiona folded another 26 paper stars and Tiffany folded another 5. At the end of the two days, Fiona made ⁵₇ of the total number of stars. What was the number of paper stars that Fiona folded?

	Fiona	Tiffany	Difference
Before	1 u + 18	1 u	18
Change	+ 26	+ 5
After	1 u + 44	1 u + 5	39
Comparing between Fiona and Tiffany in the end	5 p	2 p	3 p

Difference between the number of paper stars that Fiona and Tiffany folded in the end is repeated.

Difference between the number of paper stars that Fiona and Tiffany folded in the end
= 5 p - 2 p
= 3 p

Difference between the number of paper stars that Fiona and Tiffany folded in the end
= (1 u + 44) - (1 u + 5)
= 1 u + 44 - 1 u - 5
= 44 - 5
= 39

3 p = 39

1 p = 39 ÷ 3 = 13

Number of paper stars that Fiona folded
= 5 p
= 5 x 13
= 65

Answer(s): 65