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Q. If m men can do a work in r days, then the number of days taken by (m + n) men to do it is :

  • (A) (m+n)/mn
  • (B) (m+n)/mr
  • (C) mr/(m+n)
  • (D) r(m+n)/mn
  • Correct Answer - Option(C)
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  • Filed under category Math
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