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 911: Find the difference between the range and the variance of the following set of numbers 4, 9, 6, 3, 2, 8, 10, 5, 6, 7 where $\sum d^2$ = 60 Options:
  A) 2
  B) 3
  C) 4
  D) 6
  Show Answer
  The correct answer is A .
• Question 912:

  

  The pie chart shows the monthly expenditure pf a public servant. The monthly expenditure on housing is twice that of school fees. How much does the worker spend on housing if his monthly income is ₦7200?

  Options:
  A) ₦1000
  B) ₦2000
  C) ₦3000
  D) ₦4000
  Show Answer
  The correct answer is B .
• Question 913:

  

  In the diagram, find PQ if the area of triangle PQR is 35cm²

  Options:
  A) 7cm
  B) 10cm
  C) 14cm
  D) 17cm
  Show Answer
  The correct answer is A .
• Question 914: If the surface area of a sphere increased by 44%, find the percentage increase in diameter Options:
  A) 44
  B) 30
  C) 22
  D) 20
  Show Answer
  The correct answer is D .
• Question 915:

  If $6x^3+2x^2-5x+1$ divides $x^2-x-1$, find the remainder.

  Options:
  A) 9x + 9
  B) 2x + 6
  C) 6x + 8
  D) 5x - 3
  Show Answer
  The correct answer is A .
• Question 916: Evaluate$\left(\begin{array}{cc}3& -2\\ -7& 5\end{array}\right)$ + 2$\left(\begin{array}{cc}-2& 4\\ 3& -1\end{array}\right)$ Options:
  A) $\left(\begin{array}{cc}-1& 6\\ -1& 3\end{array}\right)$
  B) $\left(\begin{array}{cc}3& 4\\ -2& 6\end{array}\right)$
  C) $\left(\begin{array}{cc}-1& 6\\ 1& 3\end{array}\right)$
  D) $\left(\begin{array}{cc}3& 4\\ 2& 6\end{array}\right)$
  Show Answer
  The correct answer is A .
• Question 917: If y = (2x + 1)³, find $\frac{dy}{dx}$ Options:
  A) 6(2x + 1)
  B) 3(2x + 1)
  C) 6(2x + 1)²
  D) 2(2x + 1)²
  Show Answer
  The correct answer is C .
• Question 918: Simplify $\frac{x^2+y^2+xy}{x+y}$ - $\frac{x^2+y^2}{x-y}$ Options:
  A) $\frac{x^2+y^2}{(x-y{)}^2}$
  B) $\frac{2y^3}{y^2-x^2}$
  C) $\frac{3x^2+y^2}{(2x-y{)}^2}$
  D) $\frac{x^2+y^2}{(x^2-y)}$
  Show Answer
  The correct answer is B .
• Question 919: In a small village of 500 people, 350 speak the local language while 200 speak pidgin English. What percentage of the population speak both. Options:
  A) 30%
  B) 10%
  C) 50%
  D) 14%
  Show Answer
  The correct answer is B .
• Question 920: A man and wife went to buy an article costing ₦400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether? Options:
  A) ₦216
  B) ₦200
  C) ₦184
  D) ₦144
  E) ₦100
  Show Answer
  The correct answer is C .