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Patrick worked for a weekend washing cars in a garage - Junior Cycle Mathematics - Question 3 - 2018
Question 3
Patrick worked for a weekend washing cars in a garage. (a) In total, 35 cars were washed in the garage that weekend. Patrick washed 14 of them. Work out the percent... show full transcript
Worked Solution & Example Answer:Patrick worked for a weekend washing cars in a garage - Junior Cycle Mathematics - Question 3 - 2018
Step 1
(a) Work out the percentage of the cars that Patrick washed.
Answer
To find the percentage of cars Patrick washed, use the formula:
ext{Percentage} = rac{ ext{Part}}{ ext{Whole}} imes 100In this case, the part is 14 (the cars washed by Patrick) and the whole is 35 (the total cars washed).
Substituting in:
ext{Percentage} = rac{14}{35} imes 100 = 40 ext{\%}Thus, Patrick washed 40% of the cars.
Step 2
(b) Work out how many US Dollars ($) Patrick got for his £200 Sterling.
Answer
First, convert £200 to Euros using the exchange rate:
To find euros, rearrange the formula and calculate:
€ = rac{£200}{£0.88} \\ = €227.27Now, convert Euros to US Dollars:
€1 = $1.18Thus, for $:
$ = €227.27 imes 1.18 \\ = $268.00 ext{ (to the nearest cent)}So, Patrick received $268.00.