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 251: Simplify $[1÷(x^2+3x+2)]+[1÷(x^2+5x+6)]$ Options:
  A) $\frac{2}{(x+1{)}^2}$
  B) $\frac{2}{(x+1)(x+2}$
  C) $\frac{2}{(x+1)(x+2}$
  D) $\frac{2}{(x+1)(x+3}$
  Show Answer
  The correct answer is D .
• Question 252:

  

  In the figure, find PRQ

  Options:
  A) 66$\frac{1}{2}$${}^{\circ }$
  B) 62$\frac{1}{2}$${}^{\circ }$
  C) 125${}^{\circ }$
  D) 105${}^{\circ }$
  E) 65${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 253: A chord XY of a circle with centre O and radius 5.32cm has ∠XOY = 140°. What is the length of the chord to the nearest centimetre? Options:
  A) 10cm
  B) 6cm
  C) 5cm
  D) 3cm
  E) 1cm
  Show Answer
  The correct answer is A .
• Question 254: Given that x² + y² + k = 60 and x = $\sqrt{10}$ when y = , find the value of k. Options:
  A) 56
  B) 34
  C) 32
  D) -34
  E) -56
  Show Answer
  The correct answer is B .
• Question 255: If sin x = cos 50^o, then x equals Options:
  A) 40^o
  B) 45^o
  C) 50^o
  D) 90^o
  E) 130^o
  Show Answer
  The correct answer is A .
• Question 256: What is the number whose logarithm to base 10 is 2.3482? Options:
  A) 223
  B) 2228
  C) 2.235
  D) 22.37
  E) 0.2229
  Show Answer
  The correct answer is E .
• Question 257: Evaluate the integral ${\int }_{\frac{\pi }{12}}^{\frac{\pi }{4}}$ 2 cos 2x dx Options:
  A) -$\frac{1}{2}$
  B) -1
  C) $\frac{1}{2}$
  D) 1
  Show Answer
  The correct answer is C .
• Question 258: Find the value of x for which 2(3^{2x - 1}) = 162 Options:
  A) $\frac{3}{2}$
  B) $\frac{1}{2}$
  C) $\frac{5}{2}$
  D) $\frac{2}{5}$
  Show Answer
  The correct answer is C .
• Question 259: If sin $\theta$ = $\frac{3}{5}$, find tan $\theta$ Options:
  A) $\frac{3}{4}$
  B) $\frac{3}{5}$
  C) $\frac{2}{4}$
  D) $\frac{1}{4}$
  Show Answer
  The correct answer is A .
• Question 260: The inverse function f(x) = 3x + 4 is Options:
  A) (x-4)/3
  B) (x-5)/5
  C) (x+3)/4
  D) (x+4)/3
  Show Answer
  The correct answer is A .