Mathematics Past Questions And Answers
If a positive integer, list the values of x which satisfy the equation 3x - 4 < 6 and x - 1 > 0
- A. {1, 2, 3}
- B. {2, 3}
- C. {2, 3, 4}
- D. {2, 3, 4, 5}
(a) A man purchased 180 copies of a book at N250.00 each. He sold y copies at N300.00 each and the rest at a discount of 5 kobo in the Naira of the cost price.
If he made a profit of N7,125.00, find the value of y.
(b) A trader bought x bags of rice at a cost C = 24x + 103 and sold them at a price, S = \(\frac{x^2}{20} - 33x\).
Find the expression for the profit (i) If 20 bags of rice were sold,
(ii) calculate the percentage profit.
View Discussion (0)WAEC 2022 THEORYIf p = {prime factors of 210} and Q = {prime less than 10}, find p ∩ Q
- A. {1,2, 3}
- B. {2, 3, 5}
- C. {1, 3, 5,7}
- D. {2,3,5,7}
Arrange the following in descending order 2/3, 4/7, 5/9 and 1/4
- (a) 2/3, 4/7, 5/9 and 1/4
- (b) 1/4, 5/9, 4/7 and 2/3
- ( c) 1/4, 4/7, 5/9 and 2/3
- (d) 1/4, 2/3, 4/7 and 5/9
A side of a rectangle is three times the other. If the perimeter increases by 2%, find the percentage increase in the area of the rectangle.
View Discussion (0)WAEC 2013 THEORY(9).jpg)
How many seconds do have in a day?
- (a) 3600sec
- (b) 86.4x 10² sec
- (c) 86.4x 10³ sec
- (d) 864sec
Simplify \(\frac{3^{-5n}}{9^{1-n}} \times 27^{n + 1}\)
- A. 32
- B. 33
- C. 35
- D. 3
The angle of a sector of a circle, radius 10.5cm, is 48°, Calculate the perimeter of the sector
- A. 8.8cm
- B. 25.4cm
- C. 25.6cm
- D. 29.8cm
If \(^{3x}C_{2} = 15\), find the value of x?
- A. 2
- B. 4
- C. 5
- D. 6
Given that A = {3, 4, 1, 10, â…“ }
B = {4, 3,â…“, â…“, 7}.
Find A∩B
- A. {}
- B. {⅓, 1, 2}
- C. {3, 4, ⅓}
- D. {1, 3, ⅓}