Questions like these will require students to use stack models to compare 2 different items.
Different quantities of 2 items will present itself as having the same value.
The total of uneven multiples of both items will be given.
Such questions can appear in Paper 2 of P5 and P6 exams.
Calculator usage is allowed.
3 pies costs as much as 5 muffins.
Adam bought 9 pies and 12 muffins and spent $324 altogether.
How much will 10 pies cost?
If the above question is easy, try to do the more challenging question below.
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