PSLE
Fiona and Abi folded paper cranes over two days. On Saturday, Fiona folded 44 paper cranes more than Abi. On Sunday, Fiona folded another 25 paper cranes and Abi folded another 21. At the end of the two days, Fiona made ⁷₁₀ of the total number of cranes. What was the number of paper cranes that Fiona folded?

	Fiona	Abi	Difference
Before	1 u + 44	1 u	44
Change	+ 25	+ 21
After	1 u + 69	1 u + 21	48
Comparing between Fiona and Abi in the end	7 p	3 p	4 p

Difference between the number of paper cranes that Fiona and Abi folded in the end is repeated.

Difference between the number of paper cranes that Fiona and Abi folded in the end
= 7 p - 3 p
= 4 p

Difference between the number of paper cranes that Fiona and Abi folded in the end
= (1 u + 69) - (1 u + 21)
= 1 u + 69 - 1 u - 21
= 69 - 21
= 48

4 p = 48

1 p = 48 ÷ 4 = 12

Number of paper cranes that Fiona folded
= 7 p
= 7 x 12
= 84

Answer(s): 84