Question P6 Number × value
Today’s problem — free all day, every step. Every day has one.
Jamie and Oliver used $61.20 each to buy some egg tarts. Jamie has a 15% discount coupon and bought 6 more egg tarts than Oliver.
Answer
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One batch repeats. Work out one batch, then multiply.
In this one. With the same money to spend, the ratio of numbers bought is the price ratio turned upside down — a price ratio of 17 : 20 (Jamie : Oliver) becomes a tart ratio of 20 : 17.
Items are described as a fixed group or ratio that repeats, such as tiles following a pattern, snacks sold in a fixed mix, or a rate given per hour or per item.
Children start from the grand total instead of first working out what one batch is worth. In rate questions they also confuse a duration with a clock time.
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