Mathematics 2020 Past Questions | WAEC
Study the following Mathematics past questions and answers for JAMB, WAEC NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.
46. The graph of the equations y = 2x + 5 and y = 2×22+ x – 1 are shown below. Find the points of intersection of the two graphs.
- A. (2.0, 9.0) and (-1.5, 2.0)
- B. (2.0, 8.5) and (-1.5, 2.0)
- C. (2.0, 8.0) and (-1.5, 2.5)
- D. (2.0, 7.5) and (-1.5, 2.5)
47. The graph of the equations y = 2x + 5 and y = 2x2+ x – 1 are shown. If x = -2.5, what is the value of u on the curve?
- A. y = 8.0
- B. y = 8.5
- C. y = 9.0
- D. y = 9.5
48. If (x + 2) is a factor of x2+px – 10, find the value of P.
- A. 3
- B. -3
- C. 7
- D. -7
49. In the diagram, O is the centre of the circle. If < NLM = 74o, < LMN = 39oand < LOM = x, find the value of x.
- A. 134o
- B. 126o
- C. 113o
- D. 106o
50. Find the least value of x which satisfies the equation 4x = 7(mod 9)
- A. 7
- B. 6
- C. 5
- D. 4
MATHEMATICS PAST QUESTIONS 2020 THEORY
- (a) If A = {multiples of 2}, B = {multiples of 3} and C = {factors of 6} are subsets of μ= {x:1 ≤x 5 ≤ 10} find A ∩ B ∩ C
(b) Tickets for a movie premiere cost $18.00 each while the bulk purchase price for 5 tickets is $80.00. If 4 gentlemen decide to get a fifth person to join them so that they can share the bulk purchase price equally, how much would each person save?
