This is a slightly more complex version of the P4 Question "here".
This question requires students to draw "Before and After" comparison models.
Calculation using long division will be impractical due to the large divisor.
Thus question shows itself again in P5 with larger numbers.
Such question will appear in P5 Exams in Paper 2.
Calculator usage is allowed.
Ken and Ryu have sum of $1040 altogether.
How much money did Ryu have at first?
