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Q:

Tina can complete a piece of work in 10 days. Mina is $$ 33 {1\over3}$$%  less efficient than Tina. How many days are required to both to complete the work.

  • 1
    8 days
  • 2
    6 days
  • 3
    12 days
  • 4
    10 days
  • 5
    None of these
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Answer : 2. "6 days "

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