LIC AAO Model Paper 2

Some dots are spots
All spots are marks
I + A ⇒ I - type of Conclusion
“Some dots arc marks".
Conclusion (1) is the Converse of it.
All spots are marks.
All marks are points.
A + A ⇒ A - type of Conclusion
“All spots are points".
This is Conclusion (2)
All marks are points
No point is a blot
A + E ⇒ E - type of Conclusion
“No mark is a blot”.
All spots points
No point is a blot.
A + E ⇒ E - type of Conclusion
“No spot is a blot."
Therefore, Conclusion (3) does not follow.
Some dots are marks
All marks are points.
I + A ⇒ I - type of Conclusion
“Some dots are points".
Now,
Some dots are points
No point is a blot.
I + E ⇒ O - type of Conclusion
“Some dots are not blots”.
Its venn diagrams :

It is clear from the diagram II that “All blots being dots is a possibility”.
This is Conclusion (4).
All marks are points.
No point is a blot.
A + E ⇒ E - type of Conclusion
"No mark is a blot”.
Conclusion (5) is the Converse of it.