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 1531: Convert 2232₄ to base six Options:
  A) 450₆
  B) 254₆
  C) 553₆
  D) 540₆
  Show Answer
  The correct answer is A .
• Question 1532: An arc of a circle of radius 6cm is 8cm long. Find the area of the sector Options:
  A) 5$\frac{1}{3}$cm²
  B) 24cm²
  C) 36cm²
  D) 84cm²
  Show Answer
  The correct answer is B .
• Question 1533:

  $\begin{array}{cccccc}x& 1& 2& 3& 4& 5\\ f& 2& 1& 2& 1& 2\end{array}$

  Find the variance of the frequency distribution above

  Options:
  A) $\frac{3}{2}$
  B) $\frac{9}{4}$
  C) $\frac{5}{2}$
  D) 3
  Show Answer
  The correct answer is B .
• Question 1534: A cone with the sector angle of 45^o is cut out of a circle of radius of the cone. Options:
  A) $\frac{r}{16}$ cm
  B) $\frac{r}{6}$ cm
  C) $\frac{r}{8}$ cm
  D) $\frac{r}{2}$ cm
  Show Answer
  The correct answer is C .
• Question 1535:

  From a point R, 300m north of P, a man walks eastward to a place Q which is 600m from P. Find the bearing of P from Q, correct to the nearest degree

  Options:
  A) 026°
  B) 045°
  C) 210°
  D) 240°
  Show Answer
  The correct answer is D .
• Question 1536:

  What is the rate of change of the volume Vof a hemisphere with respect to its radius r when r = 2?

  Options:
  A) 8π
  B) 16π
  C) 2π
  D) 4π
  Show Answer
  The correct answer is A .
• Question 1537:

  If N225.00 yields N27.00 in x years simple interest at the rate of 4% per annum, find x.

  Options:
  A) 3
  B) 4
  C) 12
  D) 17
  Show Answer
  The correct answer is A .
• Question 1538: A cliff on the bank of a river is 300 meter high. if the angle of depression of a point on the opposite side of the river is 60${}^{\circ }$, find the width of the river. Options:
  A) 100m
  B) 75√3 m
  C) 100√3m
  D) 200√3m
  Show Answer
  The correct answer is C .
• Question 1539:

  In a class of 40 students, 32 offer mathematics, 24 offer physics and 4 offer neither mathematics nor physics. How many offer both mathematics and physics?

  Options:
  A) 4
  B) 8
  C) 16
  D) 20
  Show Answer
  The correct answer is D .
• Question 1540:

  Find the value of x and y in the simultaneous equation: 3x + y = 21; xy = 30

  Options:
  A) x = 3 or 7, y = 12 or 8
  B) x = 6 or 1, y = 11 or 5
  C) x = 2 or 5, y = 15 or 6
  D) x = 1 or 5, y = 10 or 7
  Show Answer
  The correct answer is C .