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      Question

      A vendor earns a profit equal to the cost price of 8

      metres of fabric when selling 40 metres of fabric. Calculate the percentage profit.
      A 18% Correct Answer Incorrect Answer
      B 20% Correct Answer Incorrect Answer
      C 25% Correct Answer Incorrect Answer
      D 32% Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the selling price of 1 metre cloth be Rs. β€˜SP’ and the cost price of 1 metre cloth be Rs. β€˜CP’.

      ATQ,

      40 Γ— SP – 40 Γ— CP = 8 Γ— CP

      Or, 40 Γ— SP = 48 Γ— CP

      Or, SP/CP = 48/40 = 6/5

      Required profit percentage = {(6 – 5)/5} Γ— 100 = 20%

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