Mrs Yeo gave Natalie and Nora some money each on Tuesday. On Wednesday, Natalie gave ¹₅ of the amount she had to Nora. On Thursday, Nora gave ¹₆ of the amount she had to Natalie. In the end, Natalie had $49 and Nora had $25. How much did Nora had more than Natalie at first?

	Natalie	Nora	Total
Before 1	5 u	?	$74
Change 1	- 1 u	+ 1 u
After 1	4 u	6 p	$74
Before 2	$49 - 1 p	6 p	$74
Change 2	+ 1 p	- 1 p
After 2	$49	5 p ($25)	$74

Amount that Nora had in the end = 5 p

5 p = 25

1 p = 25 ÷ 5 = 5

Working backwards.

Amount that Natalie had after giving to Nora on Wednesday
= 49 - 1 p
= 49 - 5
= $44

4 u = 44

1 u = 44 ÷ 4 = 11

Amount that Natalie had at first
= 5 u
= 5 x 11
= $55

Total amount that Natalie and Nora had 
= 49 + 25
= $74

Amount that Nora had at first
= 74 - 55
= $19

Amount that Natalie had more than Nora
= 55 - 19 
= $36

Answer(s): $36