Statements
I.Some yellow are red.
II.No red is green.
Conclusions
I.Some red are yellow.
II.Some green are yellow.
III.Some yellow are not green.
IV.All green are yellow.
A traffic signal follows the pattern: Red – 25s, Yellow - 5s, Green – 30s. If the signal turned red 31s ago, what is the color of the signal now?
The elements of sets A , B and C are all colours as follows:
A = { Red , Orange , Yellow , Brown } ,
B = { Blue , Yellow , Green , Brown } ,
C = { Black , Brown , White , Grey }
Then, A U B U C is