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 2571: The derivatives of (2x + 1)(3x + 1) is Options:
  A) 12x + 1
  B) 6x + 5
  C) 6x + 1
  D) 12x + 5
  Show Answer
  The correct answer is D .
• Question 2572: The area of the curved surface of the cone generated by the sector of a circle radius 6cm and are length 22cm is ($\pi$ = $\frac{22}{7}$) Options:
  A) 58 sq.cm
  B) 34 sq.cm
  C) 132 sq.cm
  D) 77 sq.cm
  E) 66 sq.cm
  Show Answer
  The correct answer is E .
• Question 2573: List the integral values of x which satisfy the inequality -1 < 5 - 2x $\ge$ 7. Options:
  A) -1, 0, 1, 2
  B) 0, 1, 2, 3
  C) -0, 1, 2, 3
  D) -1, 0, 2, 3
  Show Answer
  The correct answer is A .
• Question 2574: 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 2575: In a small village of 500 people, 350 speak the local language while 200 speak pidgin English. What percentage of the population speak both. Options:
  A) 30%
  B) 10%
  C) 50%
  D) 14%
  Show Answer
  The correct answer is B .
• Question 2576:

  Find the probability that a number selected at random from 21 to 34 is a multiple of 3

  Options:
  A) $\frac{3}{11}$
  B) $\frac{2}{9}$
  C) $\frac{5}{14}$
  D) $\frac{5}{13}$
  Show Answer
  The correct answer is C .
• Question 2577:

  find the limit of y = $\frac{x^3+6x-7}{x-1}$ as x tends to 1

  Options:
  A) 9
  B) 8
  C) 0
  D) 7
  Show Answer
  The correct answer is A .
• Question 2578: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 2579: The lengths of the sides of a triangle are 15m, 21m, and 28cm. What is the size of the angle facing the side 21m (correct to one decimal place)? Options:
  A) 85.7°
  B) 47.5°
  C) 41.5°
  D) 41.4°
  E) 38.2°
  Show Answer
  The correct answer is B .
• Question 2580:

  A coin is thrown 3 times. What is the probability that atleast one head is obtained?

  Options:
  A) $\frac{7}{8}$
  B) $\frac{3}{8}$
  C) None the above
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is A .