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JAMB and WAEC Mathematics questions

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

AllJAMBWAEC
All topicsBinary operations · 35Coordinate geometry · 46Differentiation · 24Euclidean geometry · 51Fractions, decimals, approximations and percentages · 56Indices, logarithms and surds · 59Inequalities · 41Integration · 23Loci · 31Matrices and determinants · 25Mensuration · 53Number bases · 49Permutation and combination · 22Polynomials · 57Probability · 48Progressions · 48Sets · 46Statistics · 53Trigonometry · 52Variation · 42

  1. Question 621· Progressions· WAEC

    Find the sum of the first 12 terms of the arithmetic progression 2, 6, 10, ...

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    Answer: C. 288

    Explanation and discussion

  2. Question 622· Progressions· JAMB

    The first term of a GP is 18 and its sum to infinity is 27. Find the common ratio.

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    Answer: B. 1/3

    Explanation and discussion

  3. Question 623· Progressions· JAMB

    Find the sum to infinity of 8 + 4 + 2 + 1 + ...

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    Answer: B. 16

    Explanation and discussion

  4. Question 624· Progressions· JAMB

    3, x and 12 are consecutive terms of a geometric progression with positive terms. Find x.

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    Answer: C. 6

    Explanation and discussion

  5. Question 625· Progressions· JAMB

    Find the sum of the first 20 terms of the series 2 + 5 + 8 + ...

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    Answer: C. 610

    Explanation and discussion

  6. Question 626· Progressions· JAMB

    Find the 5th term of the geometric progression whose first term is 81 and common ratio is ⅓.

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    Answer: C. 1

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  7. Question 627· Progressions· JAMB

    Find the sum of the first 10 terms of the arithmetic progression 4, 7, 10, …

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    Answer: D. 175

    Explanation and discussion

  8. Question 628· Progressions· WAEC

    The 4th term of a G.P. is 54 and the first term is 2. Find the common ratio.

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    Answer: D. 3

    Explanation and discussion

  9. Question 629· Progressions· WAEC

    What is the common ratio of the geometric progression 81, 27, 9, ...?

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    Answer: A. 1/3

    Explanation and discussion

  10. Question 630· Progressions· WAEC

    What is the 12th term of the sequence 5, 9, 13, 17, ...?

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    Answer: C. 49

    Explanation and discussion

  11. Question 631· Progressions· JAMB

    Find the sum to infinity of 9 + 3 + 1 + …

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    Answer: B. 13.5

    Explanation and discussion

  12. Question 632· Progressions· JAMB

    Two numbers are inserted between 2 and 54 so that the four numbers form a GP. The two numbers are

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    Answer: C. 6 and 18

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  13. Question 633· Progressions· JAMB

    Find the 12th term of the arithmetic progression 2, 5, 8, …

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    Answer: C. 35

    Explanation and discussion

  14. Question 634· Progressions· WAEC

    Find the sum of the first 15 terms of the arithmetic progression 4, 7, 10, ...

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    Answer: C. 375

    Explanation and discussion

  15. Question 635· Progressions· JAMB

    The 2nd and 5th terms of a GP are 6 and 162. Find the common ratio.

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    Answer: D. 3

    Explanation and discussion

  16. Question 636· Progressions· WAEC

    The 4th term of an arithmetic progression is 17 and the 9th term is 37. Find the common difference.

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    Answer: D. 4

    Explanation and discussion

  17. Question 637· Progressions· JAMB

    Find the 8th term of the arithmetic progression 20, 17, 14, …

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    Answer: B. −1

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  18. Question 638· Progressions· JAMB

    How many terms are there in the arithmetic progression 7, 11, 15, …, 83?

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    Answer: C. 20

    Explanation and discussion

  19. Question 639· Progressions· WAEC

    Find the 15th term of the arithmetic progression 7, 10, 13, ...

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    Answer: B. 49

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  20. Question 640· Progressions· JAMB

    Find the 10th term of the arithmetic progression 3, 7, 11, ...

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    Answer: D. 39

    Explanation and discussion

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