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 1211: What is the size of an exterior angle of a regular pentagon? Options:
  A) 36^o
  B) 60^o
  C) 72^o
  D) 120^o
  E) 360^o
  Show Answer
  The correct answer is C .
• Question 1212:

  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 .
• Question 1213: 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 1214:

  The locus of a point equidistant from two intersecting lines is

  Options:
  A) where the sum of the distances of two focal points is fixed
  B) the collection of points that are equally distant from a fixed point and a line
  C) the perpendicular bisector of the lines
  D) pair of bisectors of the angles between the two lines
  Show Answer
  The correct answer is D .
• Question 1215:

  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 .
• Question 1216:

  Find the matrix A

  A $\left[\begin{array}{cc}0& 1\\ 2& -1\end{array}\right]$ =$\left[\begin{array}{cc}2& -1\\ 1& 0\end{array}\right]$

  Options:
  A) $\left[\begin{array}{cc}2& 1\\ {-}^1{/}_2& {-}^1{/}_2\end{array}\right]$
  B) $\left[\begin{array}{cc}0& 1\\ {}^1{/}_2& {}^1{/}_2\end{array}\right]$
  C) $\left[\begin{array}{cc}2& 1\\ 0& -1\end{array}\right]$
  D) $\left[\begin{array}{cc}2& 1\\ {}^1{/}_2& -2\end{array}\right]$
  Show Answer
  The correct answer is B .
• Question 1217: Cos 65^o has the same value as Options:
  A) Sin 65^o
  B) Cos 25^o
  C) Cos 115^o
  D) Cos 205^o
  E) Cos 295^o
  Show Answer
  The correct answer is E .
• Question 1218: Calculate without using tables Tan 45° + Cos 60° Options:
  A) $\sqrt{\frac{3}{2}}$ - 1
  B) $\frac{1}{2}$
  C) 1$\frac{1}{2}$
  D) $\sqrt{\frac{3}{2}}$ + 1
  E) 2
  Show Answer
  The correct answer is C .
• Question 1219:

  If three staff of Chukwudi and Sons Ltd. agreed to share their salary arrears in the ration of their ages, which are 18 years, 20 years, 22 years respectively. If the sum of the money collected is ₦120,000.00K, How much does the second staff receive?

  Options:
  A) ₦36,000
  B) ₦44,000
  C) ₦40,000
  D) ₦15,000
  Show Answer
  The correct answer is C .
• Question 1220:

  The probability of an outcome A is 1/6. The probability of the B outcome is 1/4. If the probability of A or B or both is 1/12, what is the probability of both outcomes A and B?

  Options:
  A) 1/2
  B) 1/3
  C) 2/5
  D) 3/4
  Show Answer
  The correct answer is B .