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      Question

      A table is marked (z+5)% above its cost price and a

      discount of 35% was given on it while selling. If the cost price of the table is Rs. 1485 more than its selling price and the MRP of table is Rs. 23100, then find out the value of ‘z’.
      A 40 Correct Answer Incorrect Answer
      B 25 Correct Answer Incorrect Answer
      C 35 Correct Answer Incorrect Answer
      D 30 Correct Answer Incorrect Answer
      E None of the above Correct Answer Incorrect Answer

      Solution

      If the cost price of the table is Rs.1485 more than its selling price.

      Let’s assume the cost price of the table is Rs. ‘y’.

      selling price of the table = Rs. (y-1485)

      A table is marked (z+5)% above its cost price and a discount of 35% was given on it while selling  and the MRP of the table is Rs. 23100.

      y of (100+z+5)% = 23100    Eq.(i)

      y of (100+z+5)% of (100-35)% = (y-1485)    Eq.(ii)

      Put Eq.(i) in Eq.(ii).

      23100 of (100-35)% = (y-1485)

      23100 of 65% = (y-1485)

      15015 = (y-1485)

      y = 15015+1485 = 16500

      Put the value of ‘y’ in Eq.(ii).

      16500 of (100+z+5)% of (100-35)% = (16500-1485)

      16500 of (105+z)% of 65% = 15015

      165x(105+z)x65 = 1501500

      (105+z) = 140

      z = 140-105

      Value of ‘z’ = 35

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