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Q:

A, B and C can do a work in 6, 12 and 24 days respectively. In what time will they finish the work while working together?

  • 1
    $$ 3 {3\over7} $$days
  • 2
    $$ 2 {3\over7} $$days
  • 3
    $$ 4 {3\over7} $$days
  • 4
    $$ 3 {3\over5} $$days
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Answer : 1. "$$ 3 {3\over7} $$days "

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