Consider a set U of 23 different compounds in a Chemistry lab. There is a…
GATE · 2016 · CS · Set 2 · Computer Science & IT
Consider a set U of 23 different compounds in a Chemistry lab. There is a subset S of U of 9 compounds, each of which reacts with exactly 3 compounds of U. Consider the following statements:
I. Each compound in U \ S reacts with an odd number of compounds.
II. At least one compound in U \ S reacts with an odd number of compounds.
III. Each compound in U \ S reacts with an even number of compounds.
Which one of the above statements is ALWAYS TRUE?
- A.
Only I
- B.
Only II
- C.
Only III
- D.
None
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