The number of days, d, that it will take to build a house is given by
d = \frac{720}{n}
where n is the number of workers used each day - Edexcel - GCSE Maths - Question 10 - 2019 - Paper 2
Question 10
The number of days, d, that it will take to build a house is given by
d = \frac{720}{n}
where n is the number of workers used each day.
Ali's company will take 40... show full transcript
Worked Solution & Example Answer:The number of days, d, that it will take to build a house is given by
d = \frac{720}{n}
where n is the number of workers used each day - Edexcel - GCSE Maths - Question 10 - 2019 - Paper 2
Step 1
Calculate the number of workers in Ali's company
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Answer
Using the formula for the number of days:
d=n720
For Ali's company:
40=n720
Rearranging gives:
n=40720=18
So, Ali's company uses 18 workers.
Step 2
Calculate the number of workers in Hayley's company
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Answer
For Hayley's company:
30=m720
Rearranging gives:
m=30720=24
So, Hayley's company uses 24 workers.
Step 3
Determine how many more workers Hayley's company uses than Ali's
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Answer
The difference in the number of workers used each day is:
m−n=24−18=6
Therefore, Hayley's company will use 6 more workers each day than Ali's company.
