PSLE
Xandra and Kimberly folded paper stars over two days. On Saturday, Xandra folded 26 paper stars more than Kimberly. On Sunday, Xandra folded another 40 paper stars and Kimberly folded another 22. At the end of the two days, Xandra made ⁷₁₀ of the total number of stars. What was the number of paper stars that Xandra folded?

	Xandra	Kimberly	Difference
Before	1 u + 26	1 u	26
Change	+ 40	+ 22
After	1 u + 66	1 u + 22	44
Comparing between Xandra and Kimberly in the end	7 p	3 p	4 p

Difference between the number of paper stars that Xandra and Kimberly folded in the end is repeated.

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

Difference between the number of paper stars that Xandra and Kimberly folded in the end
= (1 u + 66) - (1 u + 22)
= 1 u + 66 - 1 u - 22
= 66 - 22
= 44

4 p = 44

1 p = 44 ÷ 4 = 11

Number of paper stars that Xandra folded
= 7 p
= 7 x 11
= 77

Answer(s): 77