SOLUTION: Ker can do a job in 6 hours. If he requests Kan to work with him, the two can do the job in 3 hrs. How long will it take Kan to do the job alone?
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Question 1145985: Ker can do a job in 6 hours. If he requests Kan to work with him, the two can do the job in 3 hrs. How long will it take Kan to do the job alone?
You can put this solution on YOUR website! 3/6 is Ker's part in 3 hours
We see immediately that is 1/2
so Kan must be working at the same rate. which is 6 hrs for the whole job
3/6+3/x=1
3/x=3/6
x=6
Ker and Kan, working together, make of the job per hour.
Ker alone makes of the job per hour.
Hence, Kan alone makes - = - of the job per hour.
Hence, Kan will complete the job in 6 hours, working alone. ANSWER
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