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How much water must be added to a bucket which contains 40 liters of milk at the cost price of Rs.3.50 per liter so that the cost of milk reduces to Rs.2 per liter?

  • A.25 liters
  • B.28 litres
  • C.30 liters
  • D.35 liters

Answer: C

Total cost price =Rs(40 x 7/2) = Rs.140 

Cost per litre =Rs.2, 

Total quantity = 140/2 = 70 Litres.  

Water to be added =(70-40) =30 Litres.

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