Waec Mathematics Past Questions For Year 1998
Question 61
It is observed that \(1 + 3 = 2^2, 1 + 3 + 5 = 3^2, 1 + 3 + 5 + 7 = 4^2. \\If \hspace{1mm}1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = P^2 find\hspace{1mm}P\)
- A. 6
- B. 7
- C. 8
- D. 9
Question 62
If P = {3, 7, 11, 13} and Q = {2, 4, 8, 16}, which of the following is correct
- A. \((P\cap Q)^l={2, 3, 4, 13}\)
- B. \(n(P\cup Q)=4\)
- C. \(P\cup Q = \emptyset\)
- D. \(P\cap Q = \emptyset\)
Question 63
Arrange in ascending order of magnitude \(26_8, 36_7, and 25_9\)
- A. \(25_9 26_8 36_7\)
- B. \(26_8 25_9 36_7\)
- C. \(36_7 26_8 25_9\)
- D. \(36_7 25_9 26_8\)
