Mathematics Past Questions And Answers
(a)
| Limes | Apples | |
| Good | 10 | 8 |
| Bad | 6 | 6 |
The table shows the number of limes and apples of the same size in a bag. If two of the fruits are picked at random, one at a time, without replacement, find the probability that : (i) both are good limes ; (ii) both are bad fruits ; (iii) one is a good apple and the other a bad lime.
(b) Solve the equation \(\log_{3} (4x + 1) - \log_{3} (3x - 5) = 2\).
View Discussion (0)WAEC 2000 THEORYFind the length of a chord which subtends an angle of 90° at the centre of a circle whose radius is 8 cm.
- A. 8√3 cm
- B. 4 cm
- C. 8 cm
- D. 8√2 cm
If \(^9C_x = 4[^7C_{x - 1}]\), find the values of \(x\)
View Discussion (0)WAEC 2023 THEORYFind the median of the following set of scores: 65, 72, 55, 48, 78
- A. 55
- B. 60
- C. 63.5
- D. 65
The mean of the numbers 15, 21, 17, 26, 18, and 29 is 21. Calculate the standard deviation
- A. 9
- B. 6
- C. 5
- D. 0
A bag contains 2 red and 4 green sweets of the same size and shape. Two boys pick a sweet each from the box, one after the other, without replacement. What is the probability that at least a sweet with green wrapper is picked?
- A. \(\frac{1}{5}\)
- B. \(\frac{2}{5}\)
- C. \(\frac{8}{15}\)
- D. \(\frac{14}{15}\)
If α and β are the roots of 3x\(^2\) - 7x + 6 = 0, find \(\frac{1}{α}\) + \(\frac{1}{β}\)
- A. \(\frac{7}{6}\)
- B. \(\frac{7}{3}\)
- C. \(\frac{14}{5}\)
- D. \(\frac{14}{3}\)
One angle of a rhombus is 60o. The shorter of the two diagonals is 8cm long. Find the length of the longer one.
- A. 8\(\sqrt{3}\)
- B. \(\frac{16}{\sqrt{3}}\)
- C. \(\sqrt{3}\)
- D. \(\frac{10}{\sqrt{3}}\)
In the diagram below angle LNM and angle YNZ are represented by g and h respectively. Find ?MNY
- A. 180
- B. 360
- C. 180
- D. 360
In how many ways can a committee of 5 be selected from 8 students if 2 particular students are to be included?
- A. 20
- B. 28
- C. 54
- D. 58