2 years ago in Time and Work

# A and B working together completed a job in 5 days. If A works twice as efficiently as he actually did and B works 1/3 of actual efficiency, the work would have completed in 3 days. Find the for A to complete the job alone.

[A] 6(1/2)
[B] 6(1/4)
[C] 6(3/4)
[D] 12(1/2)
[E] None of these

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