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Rates 2 problem-stefan received $432.00 to do job
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15 Sep 2015, 03:36
15 Sep 2015, 03:36
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Question Stats:
38% (01:47) correct
61% (01:37) wrong based on 21 sessions
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Stefan received $432.00 to do job at his regular hourly rate . however, the job took 3 hours more than he had estimated and as a result, he earned 2.00 less than hour. How long did it take stefan to complete the job?
A.16 hours
B.18 hours
C.24 hours
D.27 hours
E.36 hours
A.16 hours
B.18 hours
C.24 hours
D.27 hours
E.36 hours
Re: Rates 2 problem
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17 Sep 2015, 06:38
17 Sep 2015, 06:38
1
Expert Reply
Ayesha6194 wrote:
stefan received $432.00 to do job at his regular hourly rate . however, the job took 3 hours more than he had estimated and as a result, he earned 2.00 less than hour. How long did it take stefan to complete the job?
A. 16 hours
B.18 hours
C. 24 hours
D.27 hours
E. 36 hours
A. 16 hours
B.18 hours
C. 24 hours
D.27 hours
E. 36 hours
I think one data is missing in this question. I am assuming that by " he earned 2.00 less than hour" you mean he earned less than his hourly rate by $2
Here we have two variables
x = number of hours Stefan usually requires for a job
y = his usual hourly wage
Now from first part we know
\(x * y\) = \($432\) ........................... (i)
and in the new job he took three hours more and made $2 per hour less
\((x +3) * (y -2)\)= \($ ??\) .................. (ii)
Here we have an incomplete second equation. Hence we cannot solve for x and y. or number of hours he usually takes or his hourly wage.
Re: Rates 2 problem
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17 Sep 2015, 07:08
17 Sep 2015, 07:08
Sorry its $2.00 less per hour
Posted from my mobile device
Posted from my mobile device
