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 851:

  The line $3y+6x$ = 48 passes through the points A(-2, k) and B(4, 8). Find the value of k.

  Options:
  A) 16
  B) 20
  C) 8
  D) -2
  Show Answer
  The correct answer is B .
• Question 852: If x₁₀ = 23₅. Find x Options:
  A) 15
  B) 12
  C) 14
  D) 13
  Show Answer
  The correct answer is D .
• Question 853:

  

  In the figure, STQ = SRP, PT = TQ = 6cm and QS = 5cm. Find SR

  Options:
  A) $\frac{47}{5}$
  B) 5
  C) $\frac{32}{5}$
  D) $\frac{22}{5}$
  Show Answer
  The correct answer is A .
• Question 854: Calculate the mean deviation of the set of numbers 7, 3, 14, 9, 7, and 8. Options:
  A) 13/6
  B) 5/2
  C) 7/6
  D) 7/3
  Show Answer
  The correct answer is D .
• Question 855: At what real value of x do the curves whose equations are y = x³ + x and y = x² + 1 intersect? Options:
  A) -2
  B) 2
  C) -1
  D) 9
  E) 1
  Show Answer
  The correct answer is E .
• Question 856:

  $\begin{array}{cccccc}\text{Marks}& 1& 2& 3& 4& 5\\ \text{Frequency}& 2& 2& 8& 4& 4\end{array}$

  The table above shows the marks obtained in a given test. Find the mean mark.

  Options:
  A) 3.1
  B) 3.0
  C) 3.3
  D) 3.2
  Show Answer
  The correct answer is C .
• Question 857: A binary operation ⊕ on real numbers is defined by x⊕y = xy + x + y for any two real numbers x and y. The value of (-³/₄)⊕6 is Options:
  A) ³/₄
  B) -⁹/₂
  C) ⁴⁵/₄
  D) -³/₄
  Show Answer
  The correct answer is A .
• Question 858: 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 859: Two chords PQ and RS of a circle when produced meet at K. If ∠KPS = 31^o and ∠PKR = 42^o, find ∠KQR Options:
  A) 11^o
  B) 73^o
  C) 107^o
  D) 138^o
  E) 149^o
  Show Answer
  The correct answer is C .
• Question 860: 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 .