PSLE
Hilda and Vanessa folded paper cranes over two days. On Monday, Hilda folded 22 paper cranes more than Vanessa. On Tuesday, Hilda folded another 33 paper cranes and Vanessa folded another 25. At the end of the two days, Hilda made ⁵₈ of the total number of cranes. What was the number of paper cranes that Hilda folded?

	Hilda	Vanessa	Difference
Before	1 u + 22	1 u	22
Change	+ 33	+ 25
After	1 u + 55	1 u + 25	30
Comparing between Hilda and Vanessa in the end	5 p	3 p	2 p

Difference between the number of paper cranes that Hilda and Vanessa folded in the end is repeated.

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

Difference between the number of paper cranes that Hilda and Vanessa folded in the end
= (1 u + 55) - (1 u + 25)
= 1 u + 55 - 1 u - 25
= 55 - 25
= 30

2 p = 30

1 p = 30 ÷ 2 = 15

Number of paper cranes that Hilda folded
= 5 p
= 5 x 15
= 75

Answer(s): 75