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December 22, 2014

December 22, 2014

Posted by **danial** on Friday, January 22, 2010 at 4:40am.

Mr and Mrs Lim went shopping with a total of $712.50. After buying some items each, the amount Mrs Lim had left was 4 times the amount she spent and the amount Mr Lim had left was trice the amount he spent. Both of them had a total of $555 left, how much did each of them have at first?

- Maths -
**drwls**, Friday, January 22, 2010 at 7:34amTry setting up the algebraic equations and solving them. Let the starting amounts be x for Mr Lim and y for Mrs Lim.

x + y = 712.50

1/5 of x was spent

1/3 of y was spent

(4/5) x + (2/3) y = 555

Solve the two equations in two unknowns.

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