Mathematics Past Questions And Answers
Factorize completely; (2x + 2y)(x - y) + (2x - 2y)(x + y)
- A. 4(x - y)(x + y)
- B. (4(x - y)
- C. 2(x - y)(x + y)
- D. 2(x - y)
Simplify \((\sqrt{6} + 2)^2 - (\sqrt{6} - 2)^2\)
- A. \(2\sqrt{6}\)
- B. \(4\sqrt{6}\)
- C. \(8\sqrt{6}\)
- D. \(16\sqrt{6}\)
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%
- A. N68,000
- B. N72,000
- C. N65,000
- D. N70,000
The marks obtained by pupils of class are grouped as shown below; 0 - 4, 5 - 9,10 -14, 15 -19. Which of the following is/are not true? l. The mid values of the grouped marks are 2, 7, 12 and 17. II The class interval is 4. III The class boundaries are 0.5, 4.5, 9.5, 14.5 and 19.5
- A. I only
- B. II only
- C. III only
- D. I and II only
Solve the inequality 3x - 8 ? 5x
- A. x ? 4
- B. x ? 1
- C. x ? -4
- D. x ? -1
The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both
- A. 215
- B. 34
- C. 915
- D. 115
If m:n = 13:11, find m\(^2\) - n\(^2\) : (m + n)\(^2\)
- A. 1:11
- B. 1:13
- C. 1:10
- D. 1:12
How many sides has a polygon if the sum of its interior angle is 1440°?
- A. 6
- B. 7
- C. 8
- D. 10
Solve for t in the equation \(\frac{3}{4}\)t + \(\frac{1}{3}\)(21 - t) = 11
- A. \(\frac{9}{13}\)
- B. \(\frac{7}{13}\)
- C. 5
- D. 9\(\frac{3}{5}\)
a. A boy stands at the point M on the same horizontal level as the foot, T of a vertical building. He observes an object on the top, P of the building at an angle of elevation of 66°. He moves directly backward to a new point C and observes the same object at an angle of 53°. if | MT | = 50 m:
Illustrate the information in a diagram;
bi. Calculate and correct toone decimal place: the height of the building;
bii. Calculate and correct toone decimal place: LINE MC.
View Discussion (0)WAEC 2023 THEORY