In the question given below, you are given two statements followed by a few conclusions. You have to take the two given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions follow the two given statements disregarding commonly known facts. Statements: A. Some reds are black B. All blacks are white Conclusions: 1. Some white are black 2. All blacks are red 3. All whites are black 4. Some whites are red?

Option 3 : Only Conclusion 1 and 4 follows

The least possible Venn diagram for the given statements is as follows,

[ alt="F1 Prashant 24.10.20 Pallavi D3" src="//storage.googleapis.com/tb-img/production/20/10/F1_Prashant_24.10.20_Pallavi_D3.png" style="width: 165px; height: 83px;">

Conclusions :-

I. Some White are Black → True (It is definite relation between white and black that all black are white so, some white are black).

II. All Black are Red → False  (It is possible but not define as no definite as no direct relation is given between them).

III. All Whites are Black → False (It is possible but not define as no definite as no direct relation is given between them).

IV. Some Whites are Red → True (It is definite relation between white and red that some reds are black so, some whites are red).

Thus, Only Conclusions 1,4 follows.