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 1501: P varies directly as the square of Q and inversely as R. If P = 36, when Q = 3 and R = 4, find P when Q = 5 and R = 2. Options:
  A) 72
  B) 100
  C) 90
  D) 200
  E) 125
  Show Answer
  The correct answer is D .
• Question 1502: Marks scored by some children in an arithmetic test are:5, 3, 6, 9, 4, 7, 8, 6, 2, 7, 8, 4, 5, 2, 1, 0, 6, 9, 0, 8.
  The arithmetic mean of the marks is Options:
  A) 6
  B) 5
  C) 8
  D) 7
  E) 10
  Show Answer
  The correct answer is B .
• Question 1503: The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are Options:
  A) (21cm³, 3cm³)
  B) (24cm³, 3cm³)
  C) (24cm³, 21cm³)
  D) (72cm³, 9cm³)
  E) (63cm³, 9cm³)
  Show Answer
  The correct answer is B .
• Question 1504: Evaluate correct to 4 decimal places 877.51 $\times$ 0.015 Options:
  A) 8.8415
  B) 12.4127
  C) 124.1265
  D) 12.44120
  E) 114.1265
  Show Answer
  The correct answer is B .
• Question 1505: At what value of x does the function y= -3 – 2x +x2 attain a minimum value? Options:
  A) 4
  B) 2
  C) -1
  D) -4
  E) 1
  Show Answer
  The correct answer is E .
• Question 1506: If y = 3 sin(-4x), dy/dx is Options:
  A) 12x cos (4x)
  B) -12x cos (-4x)
  C) -12 cos (-4x)
  D) 12 sin (-4x)
  Show Answer
  The correct answer is C .
• Question 1507: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1508: 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 1509: Find the sum of the first 18 terms of the series 3, 6, 9,..., 36. Options:
  A) 505
  B) 513
  C) 433
  D) 635
  Show Answer
  The correct answer is B .
• Question 1510: Evaluate ${\int }_{\frac{-\pi }{2}}^{\frac{\pi }{2}}cosxdx$ Options:
  A) zero
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is C .