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WAEC WASSCE

WAEC Mathematics past questions and answers

Objective Mathematics questions from past WAEC WASSCE papers, with the answer and a short explanation for each. Try a question, then reveal the answer to check your working.

  1. Question 1

    WAEC 2024Linear equations

    Solve for $x$: $4x + 10 = 18$.

    1. Option A: x = 2
    2. Option B: x = 3
    3. Option C: x = 1
    4. Option D: x = 7
    Show the answer to question 1

    Answer: A, x = 2

    Subtract 10 from both sides to get 4x = 8, then divide by 4: x = 2.

  2. Question 2

    WAEC 2024Probability

    A bag contains 5 red, 7 blue, and 9 green balls. A ball is picked at random. What is the probability that it is blue?

    1. Option A: $\frac{5}{21}$
    2. Option B: $\frac{1}{3}$
    3. Option C: $\frac{3}{7}$
    4. Option D: $\frac{1}{2}$
    Show the answer to question 2

    Answer: B, $\frac{1}{3}$

    There are 7 blue balls out of 21, so the probability is $\frac{1}{3}$.

  3. Question 3

    WAEC 2024Simple interest

    Find the simple interest on ₦25,000 for 2 years at 7% per annum.

    1. Option A: ₦3,500
    2. Option B: ₦28,500
    3. Option C: ₦1,750
    4. Option D: ₦7,000
    Show the answer to question 3

    Answer: A, ₦3,500

    I = PRT ÷ 100 = 25,000 × 7 × 2 ÷ 100 = ₦3,500.

  4. Question 4

    WAEC 2024Statistics

    Find the mean of 47, 48, 53, 59, 43.

    1. Option A: 51
    2. Option B: 50
    3. Option C: 49
    4. Option D: 48
    Show the answer to question 4

    Answer: B, 50

    The sum is 250 and there are 5 numbers, so the mean is 250 ÷ 5 = 50.

  5. Question 5

    WAEC 2024Indices

    Simplify $\frac{x^{7} \times x^{2}}{x^{2}}$.

    1. Option A: $x^{12}$
    2. Option B: $x^{11}$
    3. Option C: $x^{9}$
    4. Option D: $x^{7}$
    Show the answer to question 5

    Answer: D, $x^{7}$

    Add the indices when multiplying and subtract when dividing: 7 + 2 − 2 = 7.

  6. Question 6

    WAEC 2023Mensuration

    Find the volume of a cylinder of radius 49 cm and height 18 cm. (Take $\pi = \frac{22}{7}$.)

    1. Option A: 7,546 cm³
    2. Option B: 135,828 cm³
    3. Option C: 271,656 cm³
    4. Option D: 5,544 cm³
    Show the answer to question 6

    Answer: B, 135,828 cm³

    Volume = $\pi r^2 h$ = 22/7 × 49² × 18 = 135,828 cm³.

  7. Question 7

    WAEC 2023Linear equations

    Solve for $x$: $3x + 3 = 27$.

    1. Option A: x = 9
    2. Option B: x = 7
    3. Option C: x = 8
    4. Option D: x = 10
    Show the answer to question 7

    Answer: C, x = 8

    Subtract 3 from both sides to get 3x = 24, then divide by 3: x = 8.

  8. Question 8

    WAEC 2023Simple interest

    Find the simple interest on ₦22,500 for 5 years at 9% per annum.

    1. Option A: ₦10,125
    2. Option B: ₦32,625
    3. Option C: ₦2,025
    4. Option D: ₦20,250
    Show the answer to question 8

    Answer: A, ₦10,125

    I = PRT ÷ 100 = 22,500 × 9 × 5 ÷ 100 = ₦10,125.

  9. Question 9

    WAEC 2023Indices

    Evaluate $2^{5} \times 2^{5}$.

    1. Option A: 33554432
    2. Option B: 512
    3. Option C: 1024
    4. Option D: 1048576
    Show the answer to question 9

    Answer: C, 1024

    Add the indices: $2^{5} \times 2^{5} = 2^{10} = 1024$.

  10. Question 10

    WAEC 2023Statistics

    Find the mean of 40, 41, 46, 48, 50.

    1. Option A: 46
    2. Option B: 44
    3. Option C: 45
    4. Option D: 225
    Show the answer to question 10

    Answer: C, 45

    The sum is 225 and there are 5 numbers, so the mean is 225 ÷ 5 = 45.

More Mathematics: JAMB Mathematics past questions.

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