A bakery baked 252 muffins and 180 scones on Monday.
- Write the ratio of the number of muffins to the number of scones in its simplest form.
- On Tuesday, the bakery baked muffins and scones in the same ratio as in part (a). It baked 210 scones. How many muffins did it bake on Tuesday?
Need a hint?
In part (a), find the largest number that divides both 252 and 180. In part (b), first find the value of one unit.
Worked answer
- (a) 252 : 180 ÷ 36 = 7 : 5 (HCF of 252 and 180 is 36).
- (b) Scones 5 units = 210, so 1 unit = 42.
- Muffins = 7 units = 7 × 42 = 294.
Answer: 294 muffins
The mistake this question tests
Habit
Simplest form in final fraction answers
Pupils often take 210 scones as 7 units instead of 5 units, which gives 210 ÷ 7 × 5 = 150 muffins.
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