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 631: if P = {x : x is odd, $-1<x\le 20$} and Q is {y:y is prime, $-2<y\le 25$, find P $\cap$ Q. Options:
  A) {3,5,7,11,17,19}
  B) {3,5,11,13,17,19}
  C) {3,5,7,11,13,17,19}
  D) {2,3,5,7,11,13,17,19}
  Show Answer
  The correct answer is C .
• Question 632:

  

  Find the area of the figure above

  [π = ²²/₇]

  Options:
  A) 12.5 cm²
  B) 75.0 cm²
  C) 78.5 cm²
  D) 84.8 cm²
  Show Answer
  The correct answer is D .
• Question 633: The solution to the quadratic equation 5 + 3x - 2x² = 0 is Options:
  A) ($\frac{5}{2}$, 1)
  B) (5, 3)
  C) -($\frac{5}{2}$, -1)
  D) ($\frac{5}{2}$, -1)
  Show Answer
  The correct answer is D .
• Question 634: Compute 110011₂ + 11111₂ Options:
  A) 1001010₂
  B) 1010010₂
  C) 1000110₂
  D) 1000100₂
  Show Answer
  The correct answer is B .
• Question 635: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 636: The ages of Tosan and Isa differ by 6 and the product of their ages is 187. Write their ages in the form (x, y), where x > y. Options:
  A) (12, 6)
  B) (23, 17)
  C) (17, 11)
  D) (18, 12)
  Show Answer
  The correct answer is C .
• Question 637: Find the non-zero positive value of x which satisfies the equation $\left|\begin{array}{ccc}x& 1& 0\\ 1& x& x\\ 0& 1& x\end{array}\right|$ = 0 Options:
  A) 2
  B) 4
  C) √3
  D) √2
  E) 1
  Show Answer
  The correct answer is A .
• Question 638: A man made a profit of 5% when he sold an article for N60,000.00. How much would he have sell the article to make a profit of 26% Options:
  A) N68,000
  B) N72,000
  C) N65,000
  D) N70,000
  Show Answer
  The correct answer is B .
• Question 639: Find the value of α² + β² if α + β = 2 and the distance between points (1, α) and (β, 1)is 3 units Options:
  A) 14
  B) 3
  C) 5
  D) 11
  Show Answer
  The correct answer is D .
• Question 640: A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room Options:
  A) $\frac{5}{17}$
  B) $\frac{8}{17}$
  C) $\frac{8}{15}$
  D) $\frac{12}{17}$
  Show Answer
  The correct answer is A .