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secondary 2 | Maths
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For this type of question where you have to find the cost per 1 ml or per 100ml of each brand so that you can do an apple for apple comparison.
Currently, the price for brand ABC is for 500ml and for brand XYZ is for 800ml, so you have to find out what's the cost per 1 ml or per 100ml, then you can compare equitably.
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