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: Simplify 1 - (7/3 x 5/4) + 2/5 Options:
  A) -16/15
  B) -79/60
  C) -37/15
  D) -151/60
  Show Answer
  The correct answer is B .
• Question 1072:

  Find the probability that a number selected at random from 40 to 50 is a prime.

  Options:
  A) $\frac{3}{11}$
  B) $\frac{5}{11}$
  C) $\frac{3}{11}$
  D) $\frac{4}{11}$
  Show Answer
  The correct answer is C .
• Question 1073:

  

  In the diagram above , XZ is the diameter of the circle XZW, with center O and radius 15/2 cm. If XY = 12 cm, find the area of the triangle XYZ

  Options:
  A) 54 cm²
  B) 45 cm²
  C) 27 cm²
  D) 75 cm²
  Show Answer
  The correct answer is A .
• Question 1074: find the mean deviation of 1, 2, 3 and 4 Options:
  A) 2.5
  B) 2.0
  C) 1.0
  D) 1.5
  Show Answer
  The correct answer is C .
• Question 1075: The gradient of a line joining (x,4) and (1,2) is $\frac{1}{2}$. Find the value of x Options:
  A) 5
  B) 3
  C) -3
  D) -5
  Show Answer
  The correct answer is A .
• Question 1076: If the volume of a hemisphere is increasing at a steady rate of 18π m/s, at what rate is its radius changing when its is 6m? Options:
  A) 2.30m/s
  B) 2.00 m/s
  C) 0.25 m/s
  D) 0.20 m/s
  Show Answer
  The correct answer is C .
• Question 1077: If x $\ast$ y = x + y², find the value of (2 $\ast$ 3)$\ast$5 Options:
  A) 25
  B) 11
  C) 55
  D) 36
  Show Answer
  The correct answer is D .
• Question 1078:

  Convert 0.04945 to two significant figures

  Options:
  A) 0.040
  B) 0.049
  C) 0.050
  D) 0.49
  Show Answer
  The correct answer is C .
• Question 1079:

  Find the value of k in the equation: $\sqrt{28}+\sqrt{112}-\sqrt{k}=\sqrt{175}$

  Options:
  A) $\sqrt{28}$
  B) 7
  C) 28
  D) $\sqrt{7}$
  Show Answer
  The correct answer is B .
• Question 1080:

  An equilateral triangle of side √3cm is inscribed in a circle. Find the radius of the circle.

  Options:
  A) 2/3 cm
  B) 2 cm
  C) 1 cm
  D) 3 cm
  Show Answer
  The correct answer is C .