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JAMB Mathematics questions

497 questions with answers and explanations. Tap an option to check yourself.

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All topicsBinary operations · 22Coordinate geometry · 26Differentiation · 24Euclidean geometry · 25Fractions, decimals, approximations and percentages · 27Indices, logarithms and surds · 30Inequalities · 24Integration · 23Loci · 19Matrices and determinants · 25Mensuration · 26Number bases · 25Permutation and combination · 22Polynomials · 28Probability · 25Progressions · 26Sets · 24Statistics · 27Trigonometry · 26Variation · 23

  3. Question 443· Statistics· JAMB

    39 students are arranged in order of height. The median height is the height of the

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    Answer: C. 20th student

    Explanation and discussion

  6. Question 446· Statistics· JAMB

    A student scores 60, 70 and 80 in three tests weighted 1, 2 and 2. Find the weighted mean score.

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    Answer: B. 72

    Explanation and discussion

  7. Question 447· Statistics· JAMB

    In a pie chart of 120 students, 30 students walk to school. What angle represents those who walk?

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    Answer: B. 90°

    Explanation and discussion

  9. Question 449· Trigonometry· JAMB

    A man walks 5 km north and then 12 km east. How far is he from his starting point?

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    Answer: A. 13 km

    Explanation and discussion

  10. Question 450· Trigonometry· JAMB

    A man walks 5 km due east and then 12 km due north. How far is he from his starting point?

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    Answer: A. 13 km

    Explanation and discussion

  11. Question 451· Trigonometry· JAMB

    In triangle ABC, a = 10 cm, angle A = 30° and angle B = 45°. Find b.

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    Answer: B. 10√2 cm

    Explanation and discussion

  12. Question 452· Trigonometry· JAMB

    In triangle ABC, a = 7 cm, b = 5 cm and angle C = 60°. Find c.

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    Answer: C. √39 cm

    Explanation and discussion

  13. Question 453· Trigonometry· JAMB

    Evaluate sin 30° × cos 60° + cos 30° × sin 60°.

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    Answer: D. 1

    Explanation and discussion

  14. Question 454· Trigonometry· JAMB

    Solve sin θ = ½ for 0° ≤ θ ≤ 180°.

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    Answer: A. 30° or 150°

    Explanation and discussion

  15. Question 455· Trigonometry· JAMB

    If cos θ = 5/13 and θ is acute, find tan θ.

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    Answer: A. 12/5

    Explanation and discussion

  16. Question 456· Trigonometry· JAMB

    Find the value of cos 150°.

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    Answer: B. −√3/2

    Explanation and discussion

  17. Question 457· Trigonometry· JAMB

    A ladder 13 m long reaches 12 m up a vertical wall. How far is the foot of the ladder from the wall?

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    Answer: B. 5 m

    Explanation and discussion

  18. Question 458· Trigonometry· JAMB

    A ladder 10 m long leans against a wall making an angle of 60° with the ground. How high up the wall does it reach?

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    Answer: D. 5√3 m

    Explanation and discussion

  20. Question 460· Trigonometry· JAMB

    The bearing of A from B is 060°. Find the bearing of B from A.

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    Answer: B. 240°

    Explanation and discussion

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