NECO Mathematics Exam Past Questions and Answers

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 261: If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms? Options:
  A) 2
  B) 4
  C) 6
  D) 8
  E) 10
  Show Answer
  The correct answer is C.
• Question 262: The angle subtended by a diameter of a circle at the circumference is a/an Options:
  A) acute angle
  B) obtuse angle
  C) reflex angle
  D) right angle
  E) supplementary angle
  Show Answer
  The correct answer is D.
• Question 263: Calculate (0.05 × 0.025) ÷ (4.25 × 3.35) and express your answer in standard form Options:
  A) 8.7796 × 10⁵
  B) 8.7796 × 10⁴
  C) 8.7796 × 10³
  D) 8.7796 × 10^-3
  E) 8.7796 × 10^-5
  Show Answer
  The correct answer is E.
• Question 264: The expression 4x² - 4 has the following as its factors EXCEPT Options:
  A) x - 1
  B) x + 1
  C) x² -1
  D) 4x + 1
  E) 4x - 4
  Show Answer
  The correct answer is D.
• Question 265: Simplify (216$\frac{1}{3}$)^-2 Options:
  A) $\frac{1}{36}$
  B) $\frac{1}{18}$
  C) $\frac{1}{13}$
  D) $\frac{1}{6}$
  E) $\frac{1}{3}$
  Show Answer
  The correct answer is A.
• Question 266: Divide the LCM of 15abc and 20a²bc by their HCF Options:
  A) 10a
  B) 12a
  C) 5abc
  D) 12a²bc
  E) 60a²bc
  Show Answer
  The correct answer is B.
• Question 267: The first term of an A.P is equal to thrice the common difference, what is the sixth term of the A.P, if the common difference is 8? Options:
  A) 64
  B) 48
  C) 43
  D) 24
  E) 11
  Show Answer
  The correct answer is A.
• Question 268: Solve the equation: $\frac{3}{[2(x-2)]}-\frac{2}{[3(2-x)]}=0$ Options:
  A) 3
  B) 2
  C) $\frac{3}{2}$
  D) $\frac{2}{3}$
  E) -3
  Show Answer
  The correct answer is B.
• Question 269: A car travels at an average speed of 75km/h. Find its speed in metres per second. Options:
  A) 270m/s
  B) 208m/s
  C) 27.0m/s
  D) 20.8m/s
  E) 2.08m/s
  Show Answer
  The correct answer is D.
• Question 270: What must be added to b²-3ab to make it a perfect square? Options:
  A) -3a
  B) -$\frac{3}{2}$
  C) $\frac{9}{4}$
  D) $\frac{9a}{4}$
  E) $\frac{9^2}{4}$
  Show Answer
  The correct answer is E.