Mathematics Past Questions And Answers
The radii of the base of two cylindrical tins, P and Q are r and 2r respectively. If the water level in p is 10cm high, would be the height of the same quantity of water in Q?
- A. 2.5cm
- B. 5.0cm
- C. 7.5cm
- D. 20.0cm
If \(f(x) = 6x^{3} + 13x^{2} + 2x - 5\) and \(f(-1) = 0\), find the factors of f(x).
View Discussion (0)WAEC 2011 THEORYThe sum of the angles of regular polygon is 2520o. How many sides does the polygon have?
- A. 20
- B. 18
- C. 17
- D. 16
\(\begin{array}{c|c}Age & 20 & 25 & 30 & 35 & 40 & 45 \\
\hline \text{No. of people} & 3 & 5 & 1 & 1 & 2 & 3 \end{array}\)
Calculate the median age of the frequency distribution in the table above
- A. 25
- B. 30
- C. 35
- D. 20
Solve \(3x^{2} + 4x + 1 > 0\)
- A. \(x< -1, x< -\frac{1}{3}\)
- B. \(x > -1, x > -\frac{1}{3}\)
- C. \(x > \frac{1}{3}, x< -1\)
- D. \(x< \frac{1}{3}, x > -1\)
If a dress is sold for #3800.00 at 20% discount. what is its original price?
- A. #3,000.00
- B. #4,000.00
- C. #5,000.00
- D. #4,750.00
If U = (s, p, i, e, n, d, o, u, r), X = (s, p, e, n, d) Y = (s, e, n, o, u), Z = (p, n, o, u, r) find X ∩( Y ∪ Z)
- A. (p, o, u, r)
- B. (s, p, d, r)
- C. (s, p, n, e)
- D. (n, d, u)
Solve the equation 7y2 = 3y
- A. y = 3 or 7
- B. y = 0 or 7
- C. y = 0 or 3/7
- D. y = 0 or 9
Find the 3rd term of \((\frac{x}{2} - 1)^{8}\) in descending order of x.
- A. \(\frac{x^{7}}{8}\)
- B. \(\frac{7x^{6}}{16}\)
- C. \(\frac{7x^{5}}{4}\)
- D. \(\frac{35x^{4}}{8}\)
Some white balls put in a basket containing twelve red balls and sixteen black balls. If the probability of picking a white balls from the baskets is 3/7, how many white balls were introduced?
- A. 12
- B. 21
- C. 28
- D. 32