Mathematics Past Questions And Answers
What is the missing number in: twenty and ten, fifty and……, sixteen and eight, and ninety and forty five?
- A. 50
- B. 25
- C. 20
- D. 100
In the diagram below, AB//CD. What is the size of the angle marked x?
- A. 103°
- B. 93°
- C. 77°
- D. 62°
find the length XZ in the triangle
- A. √7m
- B. √6m
- C. √5m
- D. √3m
A chord is 2cm from the centre of a circle. If the radius of the circle is 5cm, find the length of the chord
- A. 2\(\sqrt{21}\)cm
- B. \(\sqrt{42}\)cm
- C. 2\(\sqrt{19}\)cm
- D. \(\sqrt{21}\)cm
The probability that kebba, Ebou and Omar will hit a target are \(\frac{2}{3}\), \(\frac{3}{4}\) and \(\frac{4}{5}\) respectively. Find the probability that only Kebba will hit the target.
- A. \(\frac{2}{5}\)
- B. \(\frac{7}{60}\)
- C. \(\frac{1}{30}\)
- D. \(\frac{1}{60}\)
The diagram is that of a light inextensible string of length 4.2m, whose ends are attached to two fixed points X and Y, 3m apart, and on the same horizontal level. A body of mass 800g is hung on the string at a point O, 2.4m from Y. If the system is kept in equilibrium by a horizontal force P acting on the body and the tensions are equal, calculate:
(a) < XOY;
(b) the magnitude of the force P;
(c) the tension T in the string.
View Discussion (0)WAEC 2020 THEORYThe twenty-first term of an Arithmetic Progression is \(5\frac{1}{2}\) and the sum of the first twenty-one terms is \(94\frac{1}{2}\). Find the :
(a) first term ; (b) common difference ; (c) sum of the first thirty terms.
View Discussion (0)WAEC 2012 THEORYLook at this series: 500, 509, 518, 527, ... What number should come next?
- A. 536
- B. 414
- C. 530
- D. 445
Given that x > y and 3 < y, which of the following is/are true? i. y > 3 ii. x < 3 iii. x > y > 3
- A. i
- B. i and ii
- C. i and iii
- D. i, ii and iii
A team of eight lumberjacks cut an average of 15,000 cubic feet of timber in a week. How many cubic feet will four lumberjacks cut in four weeks?
- A. 30, 000
- B. 25,000
- C. 32,000
- D. 16,000