AhmedNazir

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Option 2 : Either conclusion II or IV follows.

Statements:

1. Some men are Bengalis.

2. All women are Bengalis.

The least possible diagram for the given statements is as follows

[ alt="F2 Puja T 22-2-22 Savita D10" src="//storage.googleapis.com/tb-img/production/22/02/F2_Puja%20T_22-2-22_Savita_D10.png" style="width: 210px; height: 108px;">

Conclusions:

I. No Bengali is a man → False (Given some men are Bengalis to definitely some men are also Bengali so, this statement is not true)

II. Some women are men → False (It is possible but not definite)

The possible diagram is:

[ alt="F2 Puja T 22-2-22 Savita D11" src="//storage.googleapis.com/tb-img/production/22/02/F2_Puja%20T_22-2-22_Savita_D11.png" style=" width: 210px; height: 108px;">

III. All women are men → False (It is possible but not definite)

The possible diagram is:

[ alt="F2 Puja T 22-2-22 Savita D12" src="//storage.googleapis.com/tb-img/production/22/02/F2_Puja%20T_22-2-22_Savita_D12.png" style=" width: 202px; height: 140px;">

IV. No woman is a man → False (It is possible but not definite)

The possible diagram is:

[ alt="F2 Puja T 22-2-22 Savita D10" src="//storage.googleapis.com/tb-img/production/22/02/F2_Puja%20T_22-2-22_Savita_D10.png" style=" width: 210px; height: 108px;">

Conclusion II, III and IV are complementary pair

Hence, “Either conclusion II or IV follows”.