Mathematics Past Questions And Answers
Evaluate \((20_{three})^2 - (11_{three})^2\) in base three
- A. 101
- B. 121
- C. 202
- D. 2020
The angles of a quadrilateral are 5x-30, 4x+60, 60-x and 3x+61.find the smallest of these angles​
- A. 5x - 30
- B. 4x + 60
- C. 60 - x
- D. 3x + 61
Simplify: (\(\frac{3}{4} - \frac{2}{3}\)) x 1\(\frac{1}{5}\)
- A. \(\frac{1}{60}\)
- B. \(\frac{5}{72}\)
- C. \(\frac{1}{10}\)
- D. 1\(\frac{7}{10}\)
(a) If \(9 \cos x - 7 = 1\) and \(0° \leq x \leq 90°\), find x.
(b) Given that x is an integer, find the three greatest values of x which satisfy the inequality \(7x < 2x - 13\).
View Discussion (0)WAEC 2009 THEORYThe graph above shows the cumulative frequency curve of the distribution of marks in a class test. What percentage of the students scored more than 20 marks?
- A. 68%
- B. 28%
- C. 17%
- D. 8%
In the diagram, SQ is a tangent to the circle at P, XP||YQ, ∠XPY = 56° and ∠PXY = 80°. Find angle PQY
- A. 34
- B. 13.36
- C. 44
- D. 46
PQRS is a rhombus of side 16cm. The diagonal |QS| = 20cm. Calculate, correct to the nearest degree, ∠PQR
- A. 51°
- B. 64°
- C. 77°
- D. 103°
A fair die is thrown two times. What is the probability that the sum of the scores is at least 10?
- A. \(\frac{5}{36}\)
- B. \(\frac{1}{6}\)
- C. \(\frac{5}{18}\)
- D. \(\frac{2}{3}\)
The locus of all points at a distance 8cm from a point N passes through points T and S. If S is equidistant from T and N, find the area of triangle STN.
- A. 4√3cm2
- B. 16√3cm2
- C. 32cm2
- D. 64cm2
A surveyor measured a road as being 95km with 5% underestimation. What is the true length of the road?
- a. 90km
- b. 95km
- c. 100km
- d. 105km