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 1071:

  A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime.

  Options:
  A) $\frac{2}{11}$
  B) $\frac{5}{11}$
  C) $\frac{6}{11}$
  D) $\frac{8}{11}$
  Show Answer
  The correct answer is A .
• Question 1072: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1073:

  $\begin{array}{ccccccccc}Scores(x)& 0& 1& 2& 3& 4& 5& 6& 7\\ Frequency(f)& 7& 11& 6& 7& 7& 5& 3\end{array}$

  In the distribution above, the mode and median respectively are

  Options:
  A) 1,3
  B) 1, 2
  C) 3, 3
  D) 0, 2
  Show Answer
  The correct answer is B .
• Question 1074: Rationalize $\frac{2\sqrt{3}+3\sqrt{2}}{3\sqrt{2}-2\sqrt{3}}$ Options:
  A) 5 - 2$\sqrt{6}$
  B) 5 + 2$\sqrt{6}$
  C) 5$\sqrt{6}$
  D) 5
  Show Answer
  The correct answer is B .
• Question 1075: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 1076: x varies directly as the product of u and v and inversely as their sum. If x = 3 when u = 3 and v = 1, what is the value of x if u = 3 and v = 3? Options:
  A) 3
  B) 4
  C) 6
  D) 9
  Show Answer
  The correct answer is C .
• Question 1077:

  

  Find the volume of the prism.

  Options:
  A) 990cm³
  B) 880cm³
  C) 550cm³
  D) 495cm³
  Show Answer
  The correct answer is D .
• Question 1078:

  In a triangle PQT, QR = $\sqrt{3cm}$, PR = 3cm, PQ = $2\sqrt{3}$cm and PQR = 30^o. Find angles P and R

  Options:
  A) P = 60^o and R = 90^o
  B) P = 30^o and R = 120^o
  C) P = 90^o and R = 60^o
  D) P = 60^o and R 60^o
  E) P = 45^o and R = 105^o
  Show Answer
  The correct answer is A .
• Question 1079: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 1080: If the locus of the points which are equidistant from point P and Q meets line PQ at point N, then PN equals Options:
  A) NQ
  B) ¹/₄NQ
  C) 2NQ
  D) ¹/₂NQ
  Show Answer
  The correct answer is A .