Mathematics Past Questions And Answers
Find the mean deviation of the set of numbers 4, 5, 9
- A. zero
- B. 2
- C. 5
- D. 6
If x varies inversely as y and y varies directly as z, what is the relationship between x and z?
- A. x \(\alpha\) z
- B. x \(\alpha\) \(\frac{1}{z}\)
- C. a \(\alpha\) z\(^2\)
- D. x \(\alpha\) \(\frac{1}{z^2}\)
A factory increased its annual production of radios from 40,000 to 50,000. Calculate the percentage increase in production.
- a. 25%
- b. 10%
- c. 15%
- d. 20%
The marks of eight students in a test are: 3, 10, 4, 5, 14, 13, 16 and 7. Find the range
- A. 16
- B. 14
- C. 13
- D. 11
Find x if log9x = 1.5
- A. 27
- B. 15
- C. 3.5
- D. 32
If the simple interest on a sum of money invested at 3% per annum for 2\(\frac{1}{2}\) years is N123, find the principal.
- A. N676.50
- B. N820
- C. N1,640
- D. N4,920
A particle is projected vertically upwards from the ground with speed \(30ms^{-1}\). Calculate the :
(a) maximum height reached by the particle;
(b) time taken by the particle to return to the ground;
(c) time(s) taken for the particle to attain a height of 40m above the ground. [Take \(g = 10ms^{-2}\)]
View Discussion (0)WAEC 2016 THEORYA clock gains 20 seconds every hour. It shows the correct time at 6 a.m. What time will it show at 3p.m.?
- (a) 3.03p.m.
- (b) 3.06p.m.
- (c) 2.57p.m.
- (d) 3.13p.m.
If P = {3, 5, 6} and Q = {4, 5, 6} then P∩Q equals
- A. {3, 4}
- B. {4, 5}
- C. {4, 6}
- D. {5, 6}
Calculate, correct to three significant figures, the length AB in the diagram below
- A. 36.4 cm
- B. 36.1 cm
- C. 36.2 cm
- D. 36.3 cm