PSLE
Lucy and Vanessa folded paper stars over two days. On Friday, Lucy folded 17 paper stars more than Vanessa. On Saturday, Lucy folded another 15 paper stars and Vanessa folded another 10. At the end of the two days, Lucy made ⁵₈ of the total number of stars. What was the number of paper stars that Lucy folded?

	Lucy	Vanessa	Difference
Before	1 u + 17	1 u	17
Change	+ 15	+ 10
After	1 u + 32	1 u + 10	22
Comparing between Lucy and Vanessa in the end	5 p	3 p	2 p

Difference between the number of paper stars that Lucy and Vanessa folded in the end is repeated.

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

Difference between the number of paper stars that Lucy and Vanessa folded in the end
= (1 u + 32) - (1 u + 10)
= 1 u + 32 - 1 u - 10
= 32 - 10
= 22

2 p = 22

1 p = 22 ÷ 2 = 11

Number of paper stars that Lucy folded
= 5 p
= 5 x 11
= 55

Answer(s): 55