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 1441:

  Find the probability that a number selected at random from 21 to 34 is a multiple of 3

  Options:
  A) $\frac{3}{11}$
  B) $\frac{2}{9}$
  C) $\frac{5}{14}$
  D) $\frac{5}{13}$
  Show Answer
  The correct answer is C .
• Question 1442: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 1443: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 1444: A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime Options:
  A) $\frac{2}{11}$
  B) $\frac{5}{11}$
  C) $\frac{6}{11}$
  D) $\frac{8}{11}$
  Show Answer
  The correct answer is A .
• Question 1445:

  

  The figure represents the graphs of y = x(2 - x) and y = (x - 1)(x - 3). What are the x-coordinates of P, Q and F respectively?

  Options:
  A) 1, 3, 2
  B) 0, 0, 0
  C) 0, 2, 3
  D) 1, 2, 3
  Show Answer
  The correct answer is D .
• Question 1446: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 1447: Find the value of (0.006)³ + (0.004)³ in standard form Options:
  A) 2.8 x 10^-9
  B) 2.8 x 10^-7
  C) 2.8 x 10^-8
  D) 2.8 x 10^-6
  Show Answer
  The correct answer is B .
• Question 1448: Simplify (0.09)² and give your answer correct to 4 significant figures Options:
  A) 0.81
  B) 0.081
  C) 0.0081
  D) 8.0001
  Show Answer
  The correct answer is C .
• Question 1449: Find the equation of a line perpendicular to line 2y = 5x + 4 which passes through (4, 2). Options:
  A) 5y - 2x -18 = 0
  B) 5y + 2x - 18 = 0
  C) 5y - 2x + 18 = 0
  D) 5y + 2x - 2 = 0
  Show Answer
  The correct answer is B .
• Question 1450:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .