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 1861: 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 1862:

  

  Find the mean of the distribution above

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 1863:

  $\frac{\frac{2}{3}÷\frac{4}{5}}{\frac{1}{4}+\frac{3}{5}-\frac{1}{3}}$

  Options:
  A) $\frac{31}{50}$
  B) $\frac{20}{31}$
  C) $\frac{31}{20}$
  D) $\frac{50}{31}$
  Show Answer
  The correct answer is D .
• Question 1864:

  

  PQRS is a parallelogram with area 50 square cm and the side PQ is 10cm long. T is a point on RS and TF is the altitude of the triangle TPQ. Find TF

  Options:
  A) 10cm
  B) 12.5cm
  C) 8cm
  D) 6cm
  E) 5cm
  Show Answer
  The correct answer is E .
• Question 1865: Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60^o. Options:
  A) (12 + 4$\pi$)cm
  B) (24 + 4$\pi$)cm
  C) (12 + 6$\pi$)cm
  D) (24 + 6$\pi$)cm
  Show Answer
  The correct answer is B .
• Question 1866:
  

  In the diagram above angle LNM and angle YNZ are represented by g and h respectively. Find∠MNY

  Options:
  A) 180º - gº - hº
  B) 360º - (g-h)º
  C) 180º - (g-h)º
  D) 360º - gº - hº
  Show Answer
  The correct answer is C .
• Question 1867: Express the product of 0.00043 and 2000 in standard form. Options:
  A) 8.6 x 10^-3
  B) 8.3 x 10^-2
  C) 8.6 x 10^-1
  D) 8.6 x 10
  Show Answer
  The correct answer is C .
• Question 1868: Express 37.05 x 0.0042 in standard form Options:
  A) 15.561 x 10²
  B) 1.5561 x 10^-4
  C) 1.556 x 10^-1
  D) 1.5561 x 10¹
  E) 1.55 x 10¹
  Show Answer
  The correct answer is C .
• Question 1869:
  

  Find the volume of the composite solid above.

  Options:
  A) 2048 cm${}^3$
  B) 2568 cm${}^3$
  C) 2672 cm${}^3$
  D) 1320 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 1870: An arc of length 22cm subtends an angle of θ at the center of the circle. What is the value of θ if the radius of the circle is 15cm?[Take π = 22/7] Options:
  A) 70^o
  B) 84^o
  C) 96^o
  D) 156^o
  E) 168^o
  Show Answer
  The correct answer is B .