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WAEC WASSCE 2023

WAEC Mathematics 2023 past questions

5 objective questions from the 2023 WAEC Mathematics paper. Answer each one, then reveal the answer and explanation.

All WAEC Mathematics past questions

  1. Question 1

    Mensuration

    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 1

    Answer: B, 135,828 cm³

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

  2. Question 2

    Linear 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 2

    Answer: C, x = 8

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

  3. Question 3

    Simple 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 3

    Answer: A, ₦10,125

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

  4. Question 4

    Indices

    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 4

    Answer: C, 1024

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

  5. Question 5

    Statistics

    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 5

    Answer: C, 45

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

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