PSLE
Victoria and Lucy folded paper stars over two days. On Tuesday, Victoria folded 25 paper stars more than Lucy. On Wednesday, Victoria folded another 15 paper stars and Lucy folded another 4. At the end of the two days, Victoria made ⁷₁₀ of the total number of stars. What was the number of paper stars that Victoria folded?

	Victoria	Lucy	Difference
Before	1 u + 25	1 u	25
Change	+ 15	+ 4
After	1 u + 40	1 u + 4	36
Comparing between Victoria and Lucy in the end	7 p	3 p	4 p

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

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

Difference between the number of paper stars that Victoria and Lucy folded in the end
= (1 u + 40) - (1 u + 4)
= 1 u + 40 - 1 u - 4
= 40 - 4
= 36

4 p = 36

1 p = 36 ÷ 4 = 9

Number of paper stars that Victoria folded
= 7 p
= 7 x 9
= 63

Answer(s): 63