Statements-
Some pens are sharpeners
All sharpeners are erasers
No eraser is ink
Some inks are pencil
Conclusions.
I. Some pencil are not erasers.
II. All pens being eraser is a possibility
III.Some pencil are eraser
No eraser is ink(E) + Some inks are pencil(I) ⇒ Some pencil are not erasers(I). Hence conclusion I follows but conclusion III does not follow. Some pens are sharpeners(I) + All sharpeners are erasers (A) ⇒ Some pens are erasers(I) ⇒ Probable Conclusion ⇒ All pens being eraser is a possibility(A). Hence conclusion II follows. Alternate Method: