3. In order to complete a job, X took 7 days more than Y
would take to complete it. X took 16 days more than
that which both would take to complete it. Find the
time taken by X to complete the job (in days).
(1) 21 (2) 35 (3) 28 (4) 42
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Step-by-step explanation:
We call the time it takes for B to finish the piece of work x . For problems like ... x−6x(x−6)+xx(x−6)=14 ... Therefore, it would take B a period of 12 days to finish the job.
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