P5/P6 Math: Starting Ratio and Ending Fraction of Total Given

This question type starts with the ratio of 2 parties given.

One of them undergo fractional decrease and the other one has a numeral decrease.

The remaining, which is a fraction of the total, will also be provided.

Such questions will appear in P5 SA2 and P6 exams Paper 2.
Calculator usage is allowed.

The ratio of money that Charles and David have are in the ratio of 4:5 respectively.
After Charles spent 1/2 of his money on lunch and David spent $28 on a taxi ride,
the total amount they have left is 1/3 of the total amount they had at first.

How much money did both have left at the end altogether?


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