If A is any statement, then which of the following is a tautology ?
Anonymous Quiz
25%
A
20%
B
45%
C
10%
D
Which one of the following may improve the underlined part of a sentence:
Anonymous Quiz
8%
A
17%
B
67%
C
8%
D
By how many minutes do the two clocks differ at 4pm on 22nd Jan 2010?
Anonymous Quiz
18%
A
29%
B
41%
C
12%
D