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 2421: A man is paid r naira per hour for normal work and double rate for overtime. if he does a 35-hour week which includes q hours of overtime, what is his weekly earning in naira? Options:
  A) r(35 + q)
  B) q(35r - q)
  C) q(35 + r)
  D) r(35 + 2q)
  Show Answer
  The correct answer is D .
• Question 2422: In $△$XYZ, XY = 3cm, XZ = 5cm and YZ = 7cm. If the bisector of XYZ meets XZ at W, what is the length of XW? Options:
  A) 1.5cm
  B) 2.5cm
  C) 3cm
  D) 4cm
  E) None of the above
  Show Answer
  The correct answer is A .
• Question 2423: If Q is a factor of 18 and T is prime numbers between 2 and 18. What is Q$\cap$T? Options:
  A) (2,3)
  B) (2,3,18)
  C) (2,3,9)
  D) (2,3,6)
  Show Answer
  The correct answer is A .
• Question 2424: The minimum value of $y$ in the equation $y=x^2-6x+8$ Options:
  A) 8
  B) 3
  C) -1
  D) 5
  Show Answer
  The correct answer is D .
• Question 2425: What is the locus of points equidistant from the lines ax + bc + c = 0? Options:
  A) A line bx - ay +q = 0
  B) A line ax - ay +q = 0
  C) A line bx + ay +q = 0
  D) A line bx + ay +q = 0
  Show Answer
  The correct answer is B .
• Question 2426: The nth term of a sequence is given 3^{1 - n} , find the sum of the first terms of the sequence. Options:
  A) $\frac{13}{9}$
  B) 1
  C) $\frac{1}{3}$
  D) $\frac{1}{9}$
  Show Answer
  The correct answer is A .
• Question 2427: If the volume of a hemisphere is increasing at a steady rate of 18π m/s, at what rate is its radius changing when its is 6m? Options:
  A) 2.30m/s
  B) 2.00 m/s
  C) 0.25 m/s
  D) 0.20 m/s
  Show Answer
  The correct answer is C .
• Question 2428:

  The population of a village decreased from 1,230 to 1,040 due to breakout of an epidemic. What is the percentage decrease in the population?

  Options:
  A) 15.44%
  B) 15.43%
  C) 15.42%
  D) 15.45%
  Show Answer
  The correct answer is D .
• Question 2429: Express the product of 0.21 and 0.34 in standard form Options:
  A) 7.14 x 10^-3
  B) 7.14 x 10^-2
  C) 7.14 x 10^-1
  D) 7.14 x 10^-4
  Show Answer
  The correct answer is B .
• Question 2430: Evaluate 64.764² - 35.2362 correct to 3 significant figures Options:
  A) 2960
  B) 2950
  C) 2860
  D) 2850
  Show Answer
  The correct answer is B .