PSLE
Sabrina and Min folded paper cranes over two days. On Wednesday, Sabrina folded 45 paper cranes more than Min. On Thursday, Sabrina folded another 13 paper cranes and Min folded another 13. At the end of the two days, Sabrina made ⁵₇ of the total number of cranes. What was the number of paper cranes that Sabrina folded?

	Sabrina	Min	Difference
Before	1 u + 45	1 u	45
Change	+ 13	+ 13
After	1 u + 58	1 u + 13	45
Comparing between Sabrina and Min in the end	5 p	2 p	3 p

Difference between the number of paper cranes that Sabrina and Min folded in the end is repeated.

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

Difference between the number of paper cranes that Sabrina and Min folded in the end
= (1 u + 58) - (1 u + 13)
= 1 u + 58 - 1 u - 13
= 58 - 13
= 45

3 p = 45

1 p = 45 ÷ 3 = 15

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

Answer(s): 75