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Q:

8 men working for 9 hours a day complete a piece of work in 20 days. In how many days can 7 men working for 10 hours a day complete the same piece of work?

  • 1
    21 days
  • 2
    $$ {20}{3\over 5}\ days $$
  • 3
    $$ {20}{1\over 2}\ days $$
  • 4
    $$ {20}{4\over 7}\ days $$
  • Show Answer
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Answer : 4. "$$ {20}{4\over 7}\ days $$"

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