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 2161:

  The maximum value of the function

  F(x) = 2 + x - x² is

  Options:
  A) 9/4
  B) 7/4
  C) 3/2
  D) 1/2
  Show Answer
  The correct answer is A .
• Question 2162: 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 2163:

  

  In this figure, PQ = PR = PS and SRT = 68${}^{\circ }$. Find QPS.

  Options:
  A) 136${}^{\circ }$
  B) 124${}^{\circ }$
  C) 12${}^{\circ }$
  D) 68${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 2164: Solve the equation: y - 11y + 24 = 0 Options:
  A) 8, 3
  B) 64, 9
  C) 6, 4
  D) 9, -8
  Show Answer
  The correct answer is B .
• Question 2165: Evaluate correct to 4 decimal places 827.51 x 0.015 Options:
  A) 8.8415
  B) 12.4127
  C) 124.1265
  D) 12.4120
  E) 114.1265
  Show Answer
  The correct answer is B .
• Question 2166: The expression x³ - 4x² + cx + d is such that x + 1 is its factor, and its value is 1 when x is -2. Find c and d. Options:
  A) c = 4 and d = -9
  B) c = -4 and d = 9
  C) c = -20 and d = -15
  D) c = 20 and d = -15
  E) c = -20 and d = 15
  Show Answer
  The correct answer is C .
• Question 2167: A chord of a circle subtends an angle of 60${}^{\circ }$ at the length of a circle of radius 14 cm. Find the length of the chord Options:
  A) 7 cm
  B) 14 cm
  C) 21 cm
  D) 28 cm
  Show Answer
  The correct answer is B .
• Question 2168:

  At what value of x is the function y = x${}^2$ - 2x -3 minimum?

  Options:
  A) 1
  B) -1
  C) -4
  D) 4
  Show Answer
  The correct answer is A .
• Question 2169:

  Simplify 81${}^{\frac{-3}{4}}$ x 25${}^{\frac{1}{2}}$ x 243${}^{\frac{2}{5}}$

  Options:
  A) $\frac{2}{5}$
  B) $\frac{3}{5}$
  C) $\frac{5}{2}$
  D) $\frac{5}{3}$
  Show Answer
  The correct answer is D .
• Question 2170: The binary operation $\oplus$ defined on the set of real numbers is such that x $\oplus$ y = $\frac{xy}{6}$ for all x, y $ϵ$ R. Find the inverse of 20 under this operation when the identity element is 6 Options:
  A) $\frac{9}{5}$
  B) $\frac{1}{20}$
  C) $\frac{10}{3}$
  D) $\frac{1}{12}$
  Show Answer
  The correct answer is B .