Start learning →

Three of these are wrong. Find the one that holds.

Exercise and reference answers

Questions
  1. Question
    Three of these statements about discount are false.
    Choices
    1. Item
      Marked price minus sale price
      Correct
      Yes
    2. Explanation
      Discount is worked out on the MARKED price.
      Item
      It is a percentage of the cost price
    3. Explanation
      It reduces the price, not raises it.
      Item
      It is added to the bill
    4. Explanation
      These are unrelated quantities.
      Item
      It equals the sales tax
  2. Question
    Three of these statements about compound interest are false.
    Choices
    1. Item
      Worked out on the previous year's amount
      Correct
      Yes
    2. Explanation
      It exceeds it once the base has grown.
      Item
      It always equals simple interest
    3. Explanation
      That describes SIMPLE interest.
      Item
      It uses the original principal every year
    4. Explanation
      Banks and post offices use it on deposits.
      Item
      It is charged only by shops

Explanation

Each trap moves a rule onto the wrong price, which is exactly how these questions are set. Source: syllabus Maths, Ch 7 Comparing Quantities.
Continue learning with Quill →

Browse more AFCAT questions and exercises →