Answer:
Aziz's money was $30
Osman's money was $15
Step-by-step explanation:
Let
x-----> Aziz's money at first
y-----> Osman's money
we know that

------> equation A
-----> equation B
substitute equation A in equation B and solve for y

Find the value of x
therefore
At first
Aziz's money was $30
Osman's money was $15
The answer for that equation will be 0.375.
I am not 100% sure this is right but I believe its 28:)