Statement :
Some biscuits are cakes.
All cakes are flours.
All flours are muffins.
Conclusion :
I. All muffins being biscuits is a possibility.
II. At least some flours are biscuits.
III. Some cakes are not muffins.
Some biscuits are cakes (I) + All cakes are flours (A) ⇒ Some biscuits are flours (I) + All flours are muffins (A) ⇒ Some biscuits are muffins (I) ⇒ Conversion ⇒ Some muffins are biscuits (I) ⇒ Probable Conclusion ⇒ All muffins being biscuits is a possibility(A). Hence conclusion I and II follows. All Cakes are flours (A) + All flours are muffins (A) ⇒ All Cakes are muffins (A). Hence conclusion III will not follow.