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A, B, and C, each of them working alone can complete a job in 6, 8 and 12 days respectively. If all three of them work together to complete a job and earn $ 2340, what will be C's share of the earnings?
  • a)
    $1100
  • b)
    $520
  • c)
    $1080
  • d)
    $1170
  • e)
    $630
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A, B, and C, each of them working alone can complete a job in 6, 8 and...
Let work done by A in a day = 1/6
work done by B in a day = 1/8
work done by C in a day = 1/12
total work done by 3 of them in a day = 1/6 + 1/8 + 1/12
= (4 + 3 + 2)/24
= 9/24
Fraction of work done by C in a day = 2/9
fraction of total work by each of them will be same as the work done by each individual in a day.
Total earning on completion of job = 2340 $
C's share of earning = (2/9) * 2340
= 520$
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Question Description
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