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 1471:

  

  In the figure PT is a tangent to the circle with centre at O. If PQT = 30${}^{\circ }$, find the value of PTO

  Options:
  A) 30${}^{\circ }$
  B) 50${}^{\circ }$
  C) 24${}^{\circ }$
  D) 12${}^{\circ }$
  E) 60${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1472: If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k Options:
  A) 58
  B) 38
  C) 19
  D) 11
  E) 967
  Show Answer
  The correct answer is C .
• Question 1473:

  Find the probability that a number selected at random from 41 to 56 is a multipleof 9

  Options:
  A) $\frac{1}{8}$
  B) $\frac{2}{15}$
  C) $\frac{3}{16}$
  D) $\frac{7}{8}$
  Show Answer
  The correct answer is A .
• Question 1474: A set of data contains a total of 130 items which are divided into six groups for display on a pie chart. If one group contains 26 items, then the sector representing this group on the pie chart contains an angle x^o at the centre of the circle where x is Options:
  A) 36^o
  B) 60^o
  C) 70^o
  D) 72^o
  E) 75^o
  Show Answer
  The correct answer is D .
• Question 1475: A polynomial in x whose roots are ⁴/₃ and -³/₅ is Options:
  A) 15x² - 11x – 12
  B) 15x² + 11x – 12
  C) 12x² - x – 12
  D) 12x² + 11x – 15
  Show Answer
  The correct answer is A .
• Question 1476: 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 1477: If the lines 3y = 4x - 1 and qy = x + 3 are parallel to each other, the value of q is Options:
  A) -⁴/₃
  B) -³/₄
  C) ⁴/₃
  D) ³/₄
  Show Answer
  The correct answer is D .
• Question 1478:

  

  In the diagram, QTR is a straight line and < PQT = 30${}^{\circ }$. find the sin of < PTR

  Options:
  A) $\frac{8}{15}$
  B) $\frac{2}{3}$
  C) $\frac{3}{4}$
  D) $\frac{15}{16}$
  Show Answer
  The correct answer is C .
• Question 1479:

  If x is positive real number, find the range of values for which $\frac{1}{3x}$ + $\frac{1}{2}$x = $\frac{2+3x}{6x}$ > $\frac{1}{4x}$

  Options:
  A) x > -$\frac{1}{6}$
  B) x > 0
  C) 0 < x < 6
  D) 0 < x <$\frac{1}{6}$
  Show Answer
  The correct answer is A .
• Question 1480:

  Factorize $a^2-b^2-4a+4$

  Options:
  A) (a + b)(a − b)
  B) (a − 2 + b)(a − 2 − b)
  C) (a + 1)(a − 2 + b)
  D) (a + b)²
  Show Answer
  The correct answer is B .