Mathematics Past Questions And Answers
Simplify \(\frac{(2m - u)^2 - (m - 2u)^2}{5m^2 - 5u^2}\)
- A. \(\frac{3}{5}\)
- B. \(\frac{2}{5}\)
- C. \(\frac{2m - u}{5m + u}\)
- D. \(\frac{m - 2u}{m + 5u}\)
Calculate the total surface area of a solid cone of slant height 15cm and base radius 8cm in terms of π
- A. 64πcm2
- B. 12Oπcm2
- C. 184πcm2
- D. 200πcm2
A bag contains 4 red, 6 blue and 8 green identical marbles.
(a) If three marbles are drawn at random, without replacement, calculate the probability that :
(i) all will be green ; (ii) all will have the same colour.
(b) If each marble is replaced before another is drawn, calculate the probability that all will have the same colour.
View Discussion (0)WAEC 2011 THEORYAmaka scored 60% in a test that had 50 questions. How many questions did she get correct?
- a. 25
- b. 30
- c. 35
- d. 40
If Un = n(n2 + 1), evaluate U5 - U4
- A. 18
- B. 56
- C. 62
- D. 80
For what value of k is 4x\(^2\) - 12x + k, a perfect square?
- A. -9
- B. \(\frac{-9}{4}\)
- C. \(\frac{9}{4}\)
- D. 9
An equilateral triangle has a side 2 cm. Calculate the height of the triangle.
- A. 5cm
- B. \(\sqrt5\)cm
- C. 3cm
- D. \(\sqrt{ 3}\)cm
Express in \( \frac{8.75}{0.025} \)standard form
- A. 3.5 x 10-3
- B. 3.5 x 10-2
- C. 3.5 x 101
- D. 3.5 x 102
How many students are there in the group?
- A. 25
- B. 30
- C. 52
- D. 55
The sum of the interior angles of a polygon is 20 right angles. How many sides does the polygon have?
- A. 12
- B. 20
- C. 40
- D. 10