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 1171: If sin 30° = 0.5, what is the cosine of its complement? Options:
  A) -0.866
  B) -0.5
  C) 0.0.5
  D) 0.866
  E) 1
  Show Answer
  The correct answer is C .
• Question 1172: Multiply (3$\sqrt{a}$ - 4a) by (4a + 3$\sqrt{a}$) Options:
  A) 9a + 16a²
  B) 9a – 16a²
  C) 3a + 16a²
  D) 3a - 16a²
  E) a - 16a²
  Show Answer
  The correct answer is B .
• Question 1173: In how many ways can a committee of 2 women and 3 men be chosen from 6 men and 5 women? Options:
  A) 100
  B) 200
  C) 30
  D) 50
  Show Answer
  The correct answer is B .
• Question 1174: Find the values of y which satisfy the simultaneous equations x + y = 5, x² - 2y² = 1 Options:
  A) -12, -2
  B) -12, 12
  C) 12, -2
  D) 2, -2
  Show Answer
  The correct answer is C .
• Question 1175: Simplify 3 log₆9 + log₆12 + log₆64 - log₆72 Options:
  A) 5
  B) 7776
  C) log₆31
  D) (7776)₆
  Show Answer
  The correct answer is A .
• Question 1176:

  Find the value of x for which 2(3^2x-1) = 162

  Options:
  A) ⁵/₂
  B) ³/₂
  C) ²/₅
  D) ¹/₂
  Show Answer
  The correct answer is A .
• Question 1177:

  $\text{P}={\left[\frac{\mathrm{Q}(\mathrm{R}-\mathrm{T})}{15}\right]}^{\frac{1}{3}}$

  Make T the subject of the relation.

  Options:
  A) $\text{T}=\frac{\text{R}+\text{P3}}{15\text{Q}}$
  B) $\text{T}=\frac{\text{R}-15{\text{P}}^3}{\text{Q}}$
  C) $\text{T}=\text{R}-\frac{15{\text{P}}^3}{\text{Q}}$
  D) $\text{T}=\frac{15\text{R}+\text{Q}}{{\text{P}}^3}$
  Show Answer
  The correct answer is C .
• Question 1178: (3.2)² - (1.8)² equals Options:
  A) 7.0
  B) 2.56
  C) 13.48
  D) 2.0
  E) 0.07
  Show Answer
  The correct answer is A .
• Question 1179:

  

  In the diagram, STUV is a straight line. < TSY = < UXY = 40^o and < VUW = 110^o. Calculate < TYW

  Options:
  A) 150^o
  B) 140^o
  C) 130^o
  D) 120^o
  Show Answer
  The correct answer is A .
• Question 1180: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .