Multiple choice

Which information are necessary to answer the questions asked- Find the increase percent in Cost Price to make Marked Price if Statement I: A trader gain 25% on Cost Price. Statement II: A trader gain 20% on Selling Price. Statement III: A trader gain 20% on Cost Price after giving a discount of 20% on Marked Price.

  1. I and II Together

  2. II and III Together

  3. Only III

  4. All I, II and III Together

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement III alone is sufficient. From it: Let CP = 100. Gain 20% means SP = 120. Discount 20% on MP means SP = 80% of MP, so MP = 120/0.8 = 150. Therefore, CP must increase by 50% to equal MP. Statements I and II don't provide the CP-MP relationship.

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