OC Thinking Skills Practice Test 19 — 2027 NSW Opportunity Class Exam

Let's start by building the framework:

Ali was immediately followed into the room by Hassan.

So we write it down as "AH" and note that AH will move as one block in our framework.

Next:

Zoe arrived after Francoise but immediately before Sheren who was not the last to arrive.

Let's break this in smaller parts:

Zoe arrived after Francoise

Zoe came immediately before Sheren

Sheren was not the last to arrive.

So, now we have a new block:

And also, given that Sheren is not the last we can add that in our framework:

Now: Mira was later than Francoise who arrived after Ali.

We can write it down as:

Now, we know that there are only 6 spots. (one spot for each person). We already have all 6 names in the diagram above. So the only question is, where does Mira go.

If M goes right after F, then S becomes the last to arrive, but we have been told that S is not last to arrive.

So the only possible position for M is to go all the way to the last position. This results in:

AHFZSM.

Therefore, the fourth person to arrive is Zoe.

Step 1: Note what we know for certain.

• Wrap = layer 1 (the bottom — given directly).
• Cream cheese sits directly on top of turkey — so turkey and cream cheese are always consecutive, with cream cheese one layer above turkey.

Step 2: Try the possible positions for the turkey–cream cheese pair.

The pair (turkey, cream cheese) can sit at positions (2,3), (3,4), or (4,5) — since wrap takes layer 1, turkey can't be layer 1.

Try (turkey=3, cream cheese=4):

Stack so far:

Layer 5: ?
Layer 4: cream cheese
Layer 3: turkey
Layer 2: ?
Layer 1: wrap (bottom)

Remaining items to place: spinach and tomato at layers 2 and 5.

• Tomato must not touch cream cheese (layer 4) → tomato cannot be at layer 3 (turkey already) or layer 5. So tomato must be at layer 2. ✓
• Spinach must not touch tomato (layer 2) → spinach cannot be at layer 1 (wrap already) or layer 3 (turkey already). Spinach goes at layer 5. ✓

Final stack:

Layer 5: spinach  ← TOP
Layer 4: cream cheese
Layer 3: turkey
Layer 2: tomato
Layer 1: wrap     ← BOTTOM

Step 3: Verify all rules.

All rules satisfied. Spinach is on top.