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Multiple choice

$A,B$ and $C$ can do a work separately in $16,32$ and $48$days respectively. They started work together but $B$ left off $8$days and $C$ left $6$days before the completion of work. In what time is the work finished?

  1. $14days$
  2. $12days$
  3. $9days$
  4. $10days$
  5. $\None \of \these$
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