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 2831: If X $\ast$ Y = X + Y - XY, find x when (x $\ast$ 2) + (x $\ast$ 3) = 68 Options:
  A) 24
  B) 22
  C) -12
  D) -21
  Show Answer
  The correct answer is D .
• Question 2832: Find a two-digital number such that three times the terms digit is 2 less than twice the units digit and twice the number is 20 greater than the number obtained by reversing the digits Options:
  A) 24
  B) 42
  C) 74
  D) 47
  E) 72
  Show Answer
  The correct answer is D .
• Question 2833: Find the range of the following set of numbers 0.4, −0.4, 0.3, 0.47, −0.53, 0.2 and −0.2 Options:
  A) 1.03
  B) 0.07
  C) 0.03
  D) 1.0
  Show Answer
  The correct answer is D .
• Question 2834:

  

  What is the volume of this regular three dimensional figure?

  Options:
  A) 160cm²
  B) 48cm²
  C) 120cm²
  D) 40cm²
  Show Answer
  The correct answer is B .
• Question 2835: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 2836:

  $\frac{d}{dx}$ cos(3x² - 2x) is equal to

  Options:
  A) -sin(6x - 2)
  B) -sin(3x² - 2x)dx
  C) (6x - 2) sin(3x² - 2x)
  D) -(6x - 2)sin(3x² - 2x)
  Show Answer
  The correct answer is D .
• Question 2837:

  If $P=(\frac{Q(R-T)}{15}{)}^{\frac{1}{3}}$, make T the subject of the formula.

  Options:
  A) $T=\frac{15R-Q}{P^3}$
  B) $T=R-\frac{15P^3}{Q}$
  C) $T=\frac{R-15P^3}{Q}$
  D) $T=\frac{R+P^3}{15Q}$
  Show Answer
  The correct answer is B .
• Question 2838:

  Find the equation of a line perpendicular to the line 4y = 7x + 3 which passes through (-3, 1)

  Options:
  A) 7y + 4x + 5 = 0
  B) 7y - 4x - 5 = 0
  C) 3y - 5x + 2 = 0
  D) 3y + 5x - 2 = 0
  Show Answer
  The correct answer is A .
• Question 2839:

  If P varies inversely as V and V varies directly as R², find the relationship between P and R given that R = 7 when P = 2.

  Options:
  A) P = 98R²
  B) PR² = 98
  C) P = $\frac{1}{98R^2}$
  D) P = $\frac{P{R}^2}{98}$
  Show Answer
  The correct answer is B .
• Question 2840: The nth term of the sequence ³/₂, 3, 7, 16, 35, 74 ..... is Options:
  A) 5 . 2^n-2 - n
  B) 5 . 2^n-2 - (n+1) / 2
  C) 3 . 2^n-2
  D) ³/₂ n
  Show Answer
  The correct answer is A .