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Deon needs 50g of sugar to make 15 biscuits, She also needs three times as much flour as sugar two times as much butter as sugar Deon is going to make 60 biscuits - Edexcel - GCSE Maths - Question 3 - 2019 - Paper 1
Question 3
Deon needs 50g of sugar to make 15 biscuits, She also needs three times as much flour as sugar two times as much butter as sugar Deon is going to make 60 biscuits.... show full transcript
Worked Solution & Example Answer:Deon needs 50g of sugar to make 15 biscuits, She also needs three times as much flour as sugar two times as much butter as sugar Deon is going to make 60 biscuits - Edexcel - GCSE Maths - Question 3 - 2019 - Paper 1
Step 1
Work out the amount of flour she needs.
Answer
To find the amount of flour needed, we first calculate the amount of sugar required for 60 biscuits. Since 50g of sugar is used for 15 biscuits, the amount of sugar needed for 60 biscuits is:
ext{Sugar for 60 biscuits} = rac{60}{15} imes 50 = 200gNext, since Deon needs three times as much flour as sugar, we calculate:
Therefore, Deon needs 600g of flour.
Step 2
How many packs of butter does Deon need to buy?
Answer
To find the amount of butter needed, we first calculate the amount of butter required for 60 biscuits. Since Deon needs two times as much butter as sugar, we calculate:
Since Deon buys butter in 250g packs, the number of packs needed can be calculated as:
ext{Number of packs} = rac{400}{250} = 1.6Since Deon cannot buy a fraction of a pack, she needs to round up, resulting in:
Deon needs to buy 2 packs of butter.