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Math Flashcards

7 cards from real BECE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Math flashcards as text
  1. A shopkeeper buys an item for $80 and sells it for $100. What is the percentage profit?

    Answer: 25%

    Profit = $20; % profit = (20/80) × 100 = 25%.

  2. What is the interior angle sum of a hexagon?

    Answer: 720°

    Sum of interior angles = (n − 2) × 180° = (6 − 2) × 180° = 720°.

  3. Solve the simultaneous equations: x + y = 7 and x − y = 3

    Answer: x = 5, y = 2

    Adding: 2x = 10, x = 5; substituting back: 5 + y = 7, y = 2.

  4. What is the circumference of a circle with radius 7 cm? (Use π ≈ 22/7)

    Answer: 44 cm

    Circumference = 2πr = 2 × (22/7) × 7 = 44 cm.

  5. The mode of the data set {3, 7, 5, 7, 9, 3, 7, 2} is:

    Answer: 7

    7 appears three times, more than any other value, so it is the mode.

  6. Which of the following is equivalent to 2³ × 2⁴?

    Answer: 2⁷

    When multiplying same bases, add exponents: 2³ × 2⁴ = 2^(3+4) = 2⁷.

  7. A cylindrical tank has radius 3 m and height 7 m. What is its volume? (Use π ≈ 22/7)

    Answer: 198 m³

    Volume = πr²h = (22/7) × 9 × 7 = 22 × 9 = 198 m³.