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Sixty percent of the people who responded to a company's advertisement
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25 Feb 2019, 13:52
25 Feb 2019, 13:52
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Sixty percent of the people who responded to a company's advertisement for a job opening were interviewed over the phone. Twenty percent of those interviewed over the phone, that is, 3 people, were asked to come to the company for a personal interview. How many people responded to the advertisement?
a) 16
b) 20
c) 25
d) 40
e) 64
a) 16
b) 20
c) 25
d) 40
e) 64
Re: Sixty percent of the people who responded to a company's advertisement
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25 Feb 2019, 14:33
25 Feb 2019, 14:33
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let x is the total number of respondents
number of people interviewed on the phone = \(3 = \frac{20}{100}*\frac{60}{100}*x\)
so \(x = \frac{3*100*100}{20*60} = 25\)
number of people interviewed on the phone = \(3 = \frac{20}{100}*\frac{60}{100}*x\)
so \(x = \frac{3*100*100}{20*60} = 25\)
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Re: Sixty percent of the people who responded to a company's advertisement
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25 Feb 2019, 15:02
25 Feb 2019, 15:02
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martinm91
Sixty percent of the people who responded to a company's advertisement for a job opening were interviewed over the phone. Twenty percent of those interviewed over the phone, that is, 3 people, were asked to come to the company for a personal interview. How many people responded to the advertisement?
a) 16
b) 20
c) 25
d) 40
e) 64
a) 16
b) 20
c) 25
d) 40
e) 64
Let total number of people who responded to advertisement be \(= T\)
\(60\)% of \(T\) were interviewed on phone \(= \frac{60}{100}*T\)
\(20\)% of \(60\)% of \(T\) were asked to come to the company for personal interview, that is \(3\).
Therefore; \(20\)% of \(60\)% of \(T = 3\)
\(\frac{20}{100}*\frac{60}{100}*T = 3\)
\(T = \frac{3*100*100}{20*60} = 25\)
Answer C
