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 2851: Find the values of x which satisfy the equation 16^x - 5 x 4^x + 4 = 0 Options:
  A) 1 and 4
  B) -2 and 2
  C) 0 and 1
  D) -1 and 0
  Show Answer
  The correct answer is C .
• Question 2852: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2853:

  $\begin{array}{cccccc}\text{Class Interval}& 1-5& 6-10& 11-15& 16-20& 21-25\\ Frequency& 6& 15& 20& 7& 2\end{array}$

  Estimate the median of the frequency distribution above

  Options:
  A) 10$\frac{1}{2}$
  B) 11$\frac{1}{2}$
  C) 12
  D) 13
  Show Answer
  The correct answer is C .
• Question 2854:

  In a sample survey of a University Community, the following table shows the percentage distribution of the number of members per household:

  $\begin{array}{cccccccccc}\text{No. of members per household}& 1& 2& 3& 4& 5& 6& 7& 8& \text{Total}\\ \text{No. of households}& 3& 12& 15& 28& 21& 10& 7& 4& 100\end{array}$

  What is the median?

  Options:
  A) 4
  B) 3
  C) 5
  D) 4.5
  E) None
  Show Answer
  The correct answer is A .
• Question 2855: If the price of oranges was raised by $\frac{1}{2}$k per orange. The number of oranges a customer can buy for ₦2.40 will be less by 16. What is the present price of an orange? Options:
  A) 2$\frac{1}{2}$
  B) $\frac{2}{15}$
  C) 5$\frac{1}{3}$
  D) 20
  Show Answer
  The correct answer is A .
• Question 2856: Make F the subject of the formula t = $\sqrt{\frac{v}{\frac{1}{f}+\frac{1}{g}}}$ Options:
  A) $\frac{gv-t^2}{g{t}^2}$
  B) $\frac{g{t}^2}{gv-t^2}$
  C) $\frac{v}{\frac{1}{t^2}-\frac{1}{g}}$
  D) $\frac{gv}{t^2-g}$
  Show Answer
  The correct answer is B .
• Question 2857: If | 2 3 | = | 4 1 |. find the value of y. 7 Options:
  A) -6
  B) 6
  C) -12
  D) 12
  Show Answer
  The correct answer is A .
• Question 2858: Find the value of m if 13_m + 24_m = 41_m Options:
  A) 8
  B) 6
  C) 5
  D) 2
  Show Answer
  The correct answer is B .
• Question 2859: The cost of kerosine per liter increase from N60 to N85. What is the percentage rate of increase? Options:
  A) 42%
  B) 41%
  C) 40%
  D) 25%
  Show Answer
  The correct answer is A .
• Question 2860:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .