Let Anya, Bram, Clara, Daria, Elise, and Felix be denoted as A, B, C, D, E, and F, respectively. Oldest 1 and 2 as O1 and O2, Youngest 1 and 2 as Y1 and Y2, Remaining 1 and 2 as R1 and R2.
Step 1.
Set up groups (O1, O2) (R1, R2) (Y1, Y2)
Given
B>D
D> At least two other dubbed siblings
E is not a sibling
Implication is that F, A, C can be sibling denoted as S1 and S2
Step 2. Group 2 but not Group 3: D
D is the only one that can never be in group (Y1, Y2) as because at a minimum D is third youngest.
(O1, O2) (R1, D) (S1, S2)
Step 3. Any Group: E
Since F A C can be any of the two sibling, we don't know which one will be barred form Group Oldest at D maximum age (B,D) (Remaining) (Youngest)
Since we know E is not limited be being a sibling it can occupy any of the three groups
For this example Let A C be S1 and S2 but keep in mind F can be replaced for either.
(B,E)(F,D)(A,C), (B,D)(E,F)(A,C), (B,D)(F,A)(C,E)
Bunuel
A company is assigning 6 interns, , to 3 orientation groups based on age. The 2 oldest interns will be assigned to Group 1, the 2 youngest interns will be assigned to Group 3, and the remaining 2 interns will be assigned to Group 2. No two interns are the same age. Exactly 3 of the interns are siblings.
The following information is known:
• Bram is older than Daria.
• Daria is older than each of the 3 siblings.
• Elise is not one of the siblings.
Select for an intern who could be in Group 2 but could not be in Group 3, and select for an intern who could be in any one of the 3 groups. Make only two selections, one in each column.