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 911:

  If √(2x + 2) − √x = 1, find x.

  Options:
  A) x = 1 twice
  B) x = 0 or 1
  C) x = 3 or 1
  D) x = 2 twice
  Show Answer
  The correct answer is A .
• Question 912: If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k Options:
  A) 58
  B) 38
  C) 19
  D) 11
  E) 967
  Show Answer
  The correct answer is C .
• Question 913:

  In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

  Options:
  A) 42
  B) 20
  C) 70
  D) 54
  Show Answer
  The correct answer is B .
• Question 914: If A = $\frac{1}{2}$h (a + b), make ‘a’ the subject of the formula Options:
  A) (2A – 2bh) ÷ b
  B) (2A – bh) ÷ h
  C) (2A – bh) ÷ b
  D) (A – 2bh) ÷ h
  E) (2A – h) ÷ bh
  Show Answer
  The correct answer is B .
• Question 915: If (25)^{x - 1} = 64($\frac{5}{2}$)⁶, then x has the value Options:
  A) 7
  B) 4
  C) 32
  D) 64
  E) 5
  Show Answer
  The correct answer is B .
• Question 916:

  If w varies inversely as $\frac{uv}{u+v}$ and w =8 when

  u = 2 and v= 6, find a relationship between u, v, w.

  Options:
  A) uvw = 16(u + v)
  B) 16uv = 3w(u + v)
  C) uvw = 12(u + v)
  D) 12uvw = u + v
  Show Answer
  The correct answer is C .
• Question 917: A cylindrical tank has a capacity of 3080m³. What is the depth of the tank if the diameter of its base is 14m? Take pi = 22/7. Options:
  A) 23m
  B) 25m
  C) 20m
  D) 22m
  Show Answer
  The correct answer is C .
• Question 918: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 919:

  Find all real number x which satisfy the inequality $\frac{1}{3}$ (x + 1) - 1 > $\frac{1}{5}$(x + 4)

  Options:
  A) x < 11
  B) x < -1
  C) x > 6
  D) x > 11
  Show Answer
  The correct answer is D .
• Question 920: The probability of picking a letter T fr4om the word OBSTRUCTION is Options:
  A) ¹/₁₁
  B) ²/₁₁
  C) ³/₁₁
  D) ⁴/₁₁
  Show Answer
  The correct answer is B .