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 841:

  

  In the diagram above, |PQ| = |QR|, |PS| = |RS|, ∠PSR = 30^o and ∠PQR = 80^o. Find ∠SPQ.

  Options:
  A) 15^o
  B) 25^o
  C) 40^o
  D) 50^o
  E) 55^o
  Show Answer
  The correct answer is B .
• Question 842: If n is the median and m is the mode of the following set of numbers, 2.4, 2.1, 1.6, 2.6, 2.6, 3.7, 2.1, 2.6, then (n, m) is Options:
  A) (2.6, 2.6)
  B) (2.5, 2.6)
  C) (2.6, 2.5)
  D) (2.5, 2.1)
  Show Answer
  The correct answer is B .
• Question 843:

  Each of the interior angles of a regular polygon is 140°. Calculate the sum of all the interior angles of the polygon.

  Options:
  A) 1080°
  B) 1260°
  C) 2160°
  D) 1800°
  Show Answer
  The correct answer is B .
• Question 844: Simplify $\frac{3^{-5n}}{9^{1-n}}\times {27}^{n+1}$ Options:
  A) 3²
  B) 3³
  C) 3⁵
  D) 3
  Show Answer
  The correct answer is D .
• Question 845: Evaluate ${\int }_0^2(x^3+x^2)$dx. Options:
  A) 4$\frac{5}{6}$
  B) 6$\frac{2}{3}$
  C) 1$\frac{5}{6}$
  D) 2$\frac{5}{6}$
  Show Answer
  The correct answer is B .
• Question 846: Express the product of 0.0014 and 0.011 in standard form Options:
  A) 1.54 x 10^-2
  B) 1.54 x 10^-3
  C) 1.54 x 10^-4
  D) 1.54 x 10^-5
  Show Answer
  The correct answer is D .
• Question 847:

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

  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 848: 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 849: A man donates 10% of his monthly net earnings to his church. If it amounts to ₦4,500, what is his net monthly income? Options:
  A) ₦40,500
  B) ₦45,000
  C) ₦52,500
  D) ₦62,000
  Show Answer
  The correct answer is B .
• Question 850:

  

  The table above shows the frequency distribution of the ages (in years) of pupils in a certain secondary school. What percentage of the total number of pupils is over 15 years but less than 21 years?

  Options:
  A) 35%
  B) 45%
  C) 50%
  D) 60%
  Show Answer
  The correct answer is C .