Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 681:

  

  Find the length XZ in the triangle

  Options:
  A) $\sqrt{7m}$
  B) $\sqrt{6m}$
  C) $\sqrt{5m}$
  D) $\sqrt{3m}$
  Show Answer
  The correct answer is A .
• Question 682:

  Evaluate without using tables sin(-1290${}^{\circ }$)

  Options:
  A) $\frac{3}{2}$
  B) -$\frac{3}{2}$
  C) $\frac{2}{2}$
  D) 1
  E) $\frac{1}{2}$
  Show Answer
  The correct answer is E .
• Question 683: If $P=\sqrt{\frac{r{s}^3}{t}}$, express r in terms of p, s and t Options:
  A) $\frac{p^{2}t}{s^3}$
  B) $\frac{p^{3}t}{s^3}$
  C) $\frac{p^{3}t}{s^2}$
  D) $\frac{p^t}{s^3}$
  Show Answer
  The correct answer is A .
• Question 684: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 685:

  Find the value of y, if log (y + 8) + log (y - 8) = 2log 3 + 2log 5

  Options:
  A) y = ±5
  B) y = ±10
  C) y = ±17
  D) y = ±13
  Show Answer
  The correct answer is C .
• Question 686: The difference between 4$\frac{5}{7}$ and 2$\frac{1}{4}$ greater by Options:
  A) $\frac{23}{28}$
  B) $\frac{24}{28}$
  C) $\frac{50}{56}$
  D) $\frac{27}{28}$
  E) $\frac{48}{56}$
  Show Answer
  The correct answer is C .
• Question 687:

  How many different 8 letter words are possible using the letters of the word SYLLABUS?

  Options:
  A) (8 - 1)!
  B) $\frac{8!}{2!}$
  C) $\frac{8!}{2!2!}$
  D) 8!
  Show Answer
  The correct answer is C .
• Question 688: The model height and range of heights 1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 are m and r respectively. Find m+2r. Options:
  A) 1.35
  B) 1.65
  C) 1.95
  D) 3.00
  Show Answer
  The correct answer is C .
• Question 689:
  

  Find the value of x in the diagram above

  Options:
  A) 10 units
  B) 15 units
  C) 5 units
  D) 20 units
  Show Answer
  The correct answer is A .
• Question 690: A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group? Options:
  A) 25
  B) 19
  C) 18
  D) 17
  Show Answer
  The correct answer is A .