Mrs Sim gave Jaslyn and Sabrina some money each on Tuesday. On Wednesday, Jaslyn gave ¹₄ of the amount she had to Sabrina. On Thursday, Sabrina gave ¹₃ of the amount she had to Jaslyn. In the end, Jaslyn had $45 and Sabrina had $18. How much did Sabrina had more than Jaslyn at first?

	Jaslyn	Sabrina	Total
Before 1	4 u	?	$63
Change 1	- 1 u	+ 1 u
After 1	3 u	3 p	$63
Before 2	$45 - 1 p	3 p	$63
Change 2	+ 1 p	- 1 p
After 2	$45	2 p ($18)	$63

Amount that Sabrina had in the end = 2 p

2 p = 18

1 p = 18 ÷ 2 = 9

Working backwards.

Amount that Jaslyn had after giving to Sabrina on Wednesday
= 45 - 1 p
= 45 - 9
= $36

3 u = 36

1 u = 36 ÷ 3 = 12

Amount that Jaslyn had at first
= 4 u
= 4 x 12
= $48

Total amount that Jaslyn and Sabrina had 
= 45 + 18
= $63

Amount that Sabrina had at first
= 63 - 48
= $15

Amount that Jaslyn had more than Sabrina
= 48 - 15 
= $33

Answer(s): $33