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Discussion

  1. By selling 12 apples for a rupee, a man loses 20%. How many for a rupee should he sell to gain 20%
    1. 8
    2. 10
    3. 15
    4. 16
  1. Correct Option: A

    SP = 100/12 paise
    Let's CP = x
    SP = 0.8x = 100/12
    ∴ x = 10/(0.8x12) paise
    Therefore, CP = 100/9.6 paise

    Thus the new SP (with 20% profit) = 100/9.6 X 1.2 = 100/8 paise
    Hence, 8 apples can be purchased for Rs.1 to gain 20%


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