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 1271:

  

  The bar chart shows different colours of cars passing a particular point of a certain street in two minutes. What fraction of the cars is yellow

  Options:
  A) $\frac{1}{5}$
  B) $\frac{2}{25}$
  C) $\frac{4}{15}$
  D) $\frac{3}{25}$
  Show Answer
  The correct answer is D .
• Question 1272: If a car travels 120km on 45 litres of petrol, how much petrol is needed for a journey of 600km? Options:
  A) 720 litres
  B) 160 litres
  C) 225 litres
  D) 960 litres
  Show Answer
  The correct answer is C .
• Question 1273: What is the probability that an integer x,(1 $\le$ x $\le$ 20) chosen at random is divisible by both 2 and 3? Options:
  A) 1/20
  B) 1/3
  C) 3/20
  D) 7/10
  Show Answer
  The correct answer is C .
• Question 1274:

  

  In the diagram, the base diameter is 14cm while the height is 12cm. Calculate the total surface area if the cylinder has both a base and a top.[$\pi \frac{22}{7}$]

  Options:
  A) 836cm²
  B) 308cm²
  C) 528cm²
  D) 154cm²
  Show Answer
  The correct answer is A .
• Question 1275: If y = x² - x - 12, find the range of values of x for which y $\ge$ 0
  Options:
  A) x < -3 0r x > 4
  B) x $\le$ -3 or x $\ge$ 4
  C) -3 < x $\ge$ 4
  D) -3 $\le$ x $\le$ 4
  Show Answer
  The correct answer is C .
• Question 1276: Evaluate 1011²₂ - 101²₂ Options:
  A) 110000₂
  B) 110₂
  C) 1100000₂
  D) 11000₂
  Show Answer
  The correct answer is C .
• Question 1277: If y = x sin x, find $\frac{\delta y}{\delta x}$ Options:
  A) sin x - cos x
  B) cos x - x sin x
  C) cos x + x sin x
  D) sin x + x cos x
  Show Answer
  The correct answer is D .
• Question 1278: Find the equation of the locus of a point P(x,y) which is equidistant from Q(0,0) and R(2,1). Options:
  A) 4x + 2y = 5
  B) 4x - 2y = 5
  C) 2x + 2y = 5
  D) 2x + y = 5
  Show Answer
  The correct answer is A .
• Question 1279: If U = {x : x is an integer and 1 ≤ x ≤ }
  E¹ = {x: x is a multiple of 3}
  E² = {x: x is a multiple of 4} and an integer is picked at random from U, find the probability that it is not in E² Options:
  A) $\frac{3}{4}$
  B) $\frac{3}{10}$
  C) $\frac{1}{4}$
  D) $\frac{1}{20}$
  Show Answer
  The correct answer is A .
• Question 1280: A cylinder of height h and radius r is open at one end. Its surface area is Options:
  A) 2$\pi$rh
  B) $\pi$r²h
  C) 2$\pi$rh + $\pi$r²
  D) 2$\pi$rh + 2$\pi$r²
  Show Answer
  The correct answer is C .