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 171: Find y if sin y = cos 48° Options:
  A) 21°
  B) 24°
  C) 42°
  D) 48°
  E) 102°
  Show Answer
  The correct answer is C.
• Question 172: Simplify the expression: log₄16 + log₃27 + log₈4096 Options:
  A) -9
  B) $\frac{1}{3}$
  C) $\frac{1}{9}$
  D) 3
  E) 9
  Show Answer
  The correct answer is E.
• Question 173: The radii of two similar cylindrical jugs are in the ratio 3:7. Calculate the ratio of their volumes Options:
  A) 1 : 04
  B) 3 : 07
  C) 9 : 49
  D) 0.086111111
  E) 27 : 343
  Show Answer
  The correct answer is E.
• Question 174: A man travels at a rate of 25m/sec. If he travels for 10½hrs, how many kilometres has he covered? Options:
  A) 262.5
  B) 945
  C) 970
  D) 995
  E) 1822.9
  Show Answer
  The correct answer is B.
• Question 175: The ages of Abu, Segun, Kofi and Funmi are 17 years, (2x -13) years, 14 years and 16 years respectively. What is the value of x if their mean ages is 17.5 years? Options:
  A) 18
  B) 23
  C) 25
  D) 36
  E) 70
  Show Answer
  The correct answer is A.
• Question 176: 2 bags of sugar at N_x per bag are mixed with 3 bags of sugar at N_y per bag. What is the cost in N of the mixture per bag? Options:
  A) $\frac{(2x+3y)}{5}$
  B) $\frac{(x+y)}{2}$
  C) $\frac{x}{2}+\frac{y}{3}$
  D) $\frac{(x+y)}{5}$
  E) $\frac{(3x+2y)}{5}$
  Show Answer
  The correct answer is A.
• Question 177: The ages of 10 students in a class are; 15, 16, 15.5, 17, 14.9, 14.5, 14.1, 15.1, 14.8. find the range of their ages. Options:
  A) 6.1
  B) 4.8
  C) 2.9
  D) 2.1
  E) 1.9
  Show Answer
  The correct answer is C.
• Question 178: If the 3rd and the 5th terms of an A.P are 6 and 10 respectively, find the 1st term and the common difference respectively. Options:
  A) 1, 2
  B) 2, 2
  C) 2, 3
  D) 3, 2
  E) 3,3
  Show Answer
  The correct answer is B.
• Question 179: A pair of shoes was sold for N2,250.00 at a loss of 10%. What was the cost price? Options:
  A) N750.00
  B) N2,500.00
  C) N2,538.00
  D) N3,288.00
  E) N4,038.00
  Show Answer
  The correct answer is B.
• Question 180: Find the coefficient of xy in the expansion of (x - 4y)(3x + 2y) Options:
  A) 14
  B) 12
  C) 10
  D) -10
  E) -12
  Show Answer
  The correct answer is D.