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 1071: If S = (x : x² = 9, x > 4), then S is equal to Options:
  A) 4
  B) {0}
  C) $\oplus$
  D) {$\oplus$}
  Show Answer
  The correct answer is C .
• Question 1072: Two chords PQ and RS of a circle when produced meet at K. If ∠KPS = 31^o and ∠PKR = 42^o, find ∠KQR Options:
  A) 11^o
  B) 73^o
  C) 107^o
  D) 138^o
  E) 149^o
  Show Answer
  The correct answer is C .
• Question 1073: A square of cardboard is taped at the perimeter by a piece of ribbon 20cm long. What is the area of the board? Options:
  A) 20sq.cm
  B) 100sq.cm
  C) 25sq.cm
  D) 16sq.cm
  E) 36sq.cm
  Show Answer
  The correct answer is C .
• Question 1074:

  Simplify $\sqrt[3]{(64r^6{)}^{\frac{1}{2}}}$

  Options:
  A) $\frac{r}{2}$
  B) 2r
  C) $\frac{1}{2r}$
  D) $\frac{2}{r}$
  E) 64r
  Show Answer
  The correct answer is E .
• Question 1075: If sine x equals cosine x, what is x in radians? Options:
  A) $\frac{\pi }{2}$
  B) $\frac{\pi }{3}$
  C) $\frac{\pi }{4}$
  D) $\frac{\pi }{6}$
  E) $\frac{\pi }{12}$
  Show Answer
  The correct answer is C .
• Question 1076: The variance of x, 2x, 3x, 4x and 5x is Options:
  A) x√2
  B) 2x²
  C) x²
  D) 3x
  Show Answer
  The correct answer is B .
• Question 1077: If P = {1,2,3,4,5} and P $\cup$ Q = {1,2,3,4,5,6,7}, list the elements in Q Options:
  A) {6}
  B) {7}
  C) {6,7}
  D) {5,6}
  Show Answer
  The correct answer is C .
• Question 1078: A man invests a sum of money at 4% per annum simple invest. After 3 years, the principal amounts to ₦7,000.00. Find the sum invested Options:
  A) ₦7,840
  B) ₦6,250.00
  C) ₦616.00
  D) ₦5,833.33
  Show Answer
  The correct answer is B .
• Question 1079: A solid metal cube of side 3 cm is placed in a rectangular tank of dimension 3, 4 and 5 cm. What volume of water can the tank now hold Options:
  A) 48 cm³
  B) 33 cm³
  C) 60 cm³
  D) 27 cm³
  Show Answer
  The correct answer is B .
• Question 1080: Simplify $\frac{1}{(x+1)}+\frac{1}{(x-1)}$ Options:
  A) 2x/(x + 1)(x−3)
  B) 2/(x + 1)(x−1)
  C) 2x/(x + 1)2
  D) 2x(x+1)2
  Show Answer
  The correct answer is B .