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 121: If x² + 4 = 0, then x ? Options:
  A) 4
  B) -4
  C) 2
  D) -2
  E) None of the above
  Show Answer
  The correct answer is E .
• Question 122: Each of the interior angles of a regular polygon is 140^o. How many sides has the polygon? Options:
  A) 9
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is A .
• Question 123: Find the length of a side of a rhombus whose diagonals are 6cm and 8cm Options:
  A) 8cm
  B) 5cm
  C) 4cm
  D) 3cm
  Show Answer
  The correct answer is B .
• Question 124: Without using table, calculate the value of 1 + sec² 30^o Options:
  A) 2$\frac{1}{3}$
  B) $\frac{2}{15}$
  C) $\frac{5}{3}$
  D) 3$\frac{1}{2}$
  Show Answer
  The correct answer is A .
• Question 125: X and Y are two events. The probability of X or Y is 0.7 and that of X is 0.4. If X and Y are independent, find the probability of Y. Options:
  A) 0.30
  B) 0.50
  C) 0.57
  D) 1.80
  Show Answer
  The correct answer is A .
• Question 126: For an arithmetical sequence, the first term is 2 and the common difference is 3. Find the sum of the first 11 terms Options:
  A) 157
  B) 187
  C) 197
  D) 200
  Show Answer
  The correct answer is B .
• Question 127: 22$\frac{1}{2}$% of the Nigerian Naira is equal to 17$\frac{1}{10}$% of a foreign currency M. What is the conversion rate of the M to the Naira? Options:
  A) 1M = 1$\frac{15}{57}$N
  B) 1M = 38$\frac{1}{4}$N
  C) 1M = 1$\frac{18}{57}$N
  D) 1M = 384$\frac{3}{4}$N
  Show Answer
  The correct answer is C .
• Question 128: 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 129:

  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 130: The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms Options:
  A) 60
  B) 62
  C) 54
  D) 64
  Show Answer
  The correct answer is B .