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ashish.jere
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Div A, Div B (GPREP)

by ashish.jere Wed Jul 08, 2009 2:31 pm

In 1995 Division A of Company X had 4 850 customers. if there were 86 service errors in Division A that year, what was the service-error rate, in number of service errors per 100 customers, for Division B of company X in 1995 ?

(1) In 1995, the overall service-error rate for Divisions A and B combined was 1.5 service errors per 100 customers

(2) In 1995 Division B had 9350 customers, none of whom were customers of Division A


From Statement (1)

(86 + x ) / (4850 + B) = 1.5 / 100

Where x = errors in Division B, B = customers in B.

Not Sufficient.

Is the above equation right?


From Statement (2)

We get B. Not Sufficient.


(1) + (2)

x is the only unknown. We can find x and later service errors per 100 customers.
cfaking
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Re: Div A, Div B (GPREP)

by cfaking Thu Jul 09, 2009 4:47 am

Right Approach


if we calculate further we get x=127

hence OA-C?
Many of the great achievements of the world were accomplished by tired and discouraged men who kept on working.
RonPurewal
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Re: Div A, Div B (GPREP)

by RonPurewal Fri Jul 10, 2009 7:19 am

there is already a GIANT thread on this problem. it can be found here:
in-1995-division-a-of-company-x-had-4-850-customers-t974.html

if you have any further questions, please post them on THAT thread, not this one. thank you.
ashish.jere
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Re: Div A, Div B (GPREP)

by ashish.jere Mon Jul 13, 2009 9:03 am

thanks.
RonPurewal
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Re: Div A, Div B (GPREP)

by RonPurewal Thu Jul 16, 2009 8:25 am

ashish.jere Wrote:thanks.


no problem. sometimes the threads are hard to find.