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 1171: Evaluate 64.764² - 35.2362 correct to 3 significant figures Options:
  A) 2960
  B) 2950
  C) 2860
  D) 2850
  Show Answer
  The correct answer is B .
• Question 1172:
  

  Use the quadratic equation curve to answer this question.

  What is the 80th percentile?

  Options:
  A) -5.3
  B) 0.5
  C) 3
  D) 8
  Show Answer
  The correct answer is A .
• Question 1173: The determination of the matrix $\left(\begin{array}{ccc}1& 3& 3\\ 4& 5& 6\\ 2& 0& 1\end{array}\right)$ is Options:
  A) -67
  B) -57
  C) -3
  D) 3
  Show Answer
  The correct answer is D .
• Question 1174: Determine the value of ${\int }_0^{\frac{\pi }{2}}$ (-2 cosx)dx Options:
  A) -$\frac{3}{2}$
  B) -$\frac{1}{2}$
  C) -2
  D) -3
  Show Answer
  The correct answer is C .
• Question 1175: Given that 10^x = 0.2 and log₁₀2 = 0.3010, find x Options:
  A) -1.3010
  B) -0.6990
  C) 0.6990
  D) 1.3010
  E) 0.02
  Show Answer
  The correct answer is B .
• Question 1176: A pair of shoes was sold for N2,250.00 at a loss of 10%. What was the cost price? Options:
  A) N750.00
  B) N2,500.00
  C) N2,538.00
  D) N3,288.00
  E) N4,038.00
  Show Answer
  The correct answer is B .
• Question 1177: 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 1178: If p varies inversely as the cube of q and q varies directly as the square of r, what is the relationship between p and r? Options:
  A) p varies directly as r³
  B) p varies inversely as r⁶
  C) p varies inversely as ⁶√P
  D) p varies directly as r⁶
  Show Answer
  The correct answer is C .
• Question 1179: If the lines 2y - kx + 2 = 0 and y + x - $\frac{k}{2}$ = 0 intersect at (1, 2), find the value of k Options:
  A) -2
  B) -4
  C) -1
  D) -3
  Show Answer
  The correct answer is A .
• Question 1180: Factorize $x^2-2x-15$ Options:
  A) (x + 3)²
  B) (x + 5)(x − 3)
  C) (x − 5)²
  D) (x − 5)(x + 3)
  Show Answer
  The correct answer is D .