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 2441:

  ⊗	k	l	m
  k	l	m	k
  l	m	k	l
  m	k	l	m

  The identity element with respect to the multiplication shown in the table above is

  Options:
  A) o
  B) m
  C) l
  D) k
  Show Answer
  The correct answer is B .
• Question 2442: P varies directly as Q and inversely as R. When Q = 36 and R = 16, P = 27. Find the relation between P, Q and R. Options:
  A) $P=\frac{Q}{12R}$
  B) $P=\frac{12Q}{R}$
  C) $P=12QR$
  D) $P=\frac{12}{QR}$
  Show Answer
  The correct answer is B .
• Question 2443: If log₁₀2 = 0.3010 and log₁₀7 = 0.8451, evaluate log₁₀280 Options:
  A) 3.4471
  B) 2.4471
  C) 1.4471
  D) 1.4071
  Show Answer
  The correct answer is B .
• Question 2444:

  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 .
• Question 2445: From a point Z, 60 m north of X, a man walks 60√3m eastwards to another point Y. Find the bearing of Y from X. Options:
  A) 0.30^o
  B) 045^o
  C) 060^o
  D) 090^o
  Show Answer
  The correct answer is C .
• Question 2446: Evaluate $\frac{(0.5625{)}^2-(0.4375{)}^2}{0.04}$ Options:
  A) 0.131
  B) 3.11
  C) 3.12
  D) 3.13
  Show Answer
  The correct answer is D .
• Question 2447: If M represents the median and D the mode of the measurements 5, 9, 3, 5, 8 then (M, D) is Options:
  A) (6, 5)
  B) (5, 8)
  C) (5, 7)
  D) (5, 5)
  E) (7, 5)
  Show Answer
  The correct answer is D .
• Question 2448: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 2449: If a² + b² = 16 and 2ab = 7.Find all the possible values of (a - b) Options:
  A) 3, -3
  B) 2, -2
  C) 1, -1
  D) 3, -1
  Show Answer
  The correct answer is A .
• Question 2450: A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room Options:
  A) $\frac{5}{17}$
  B) $\frac{8}{17}$
  C) $\frac{8}{15}$
  D) $\frac{12}{17}$
  Show Answer
  The correct answer is A .