Thinking Skills in the NSW OC test

  • 30 questions
  • 30 minutes
  • About 1 minute per question
  • Multiple choice

What it tests

Critical thinking and problem solving. No previous knowledge is needed. Questions with four answer options, at about a minute each.

Question types you’ll practise

Arguments

Which statement best supports or weakens a claim.

Deduction

What must be true, given a rule or a set of facts.

Number puzzles

Orders, arrangements and totals.

Spatial

Shapes, views and patterns.

A sample question

Thinking Skills · sampleFree mock, question 9

Maria follows these habits:

- If Maria goes jogging, she drinks water afterwards.
- If Maria drinks water after jogging, she listens to music.
- Whenever Maria goes swimming, she also drinks water.

On Monday, Maria was listening to music.

On Tuesday, Maria drank water but did not listen to music.

Paul says: “Maria must have gone jogging on Monday.”

Linda says: “Maria cannot have gone jogging on Tuesday.”

Whose reasoning is correct?

  1. A Paul only
  2. B Linda only
  3. C Both Paul and Linda
  4. D Neither Paul nor Linda

Worked solution

Answer: B. Listening to music does not prove that Maria went jogging, because she could have listened to music for another reason. Therefore Paul is incorrect. If Maria had gone jogging on Tuesday, she would have drunk water afterwards and then listened to music. Since she did not listen to music on Tuesday, she could not have gone jogging. Therefore Linda is correct, so the answer is B.

Pacing

With 30 questions in 30 minutes, a question that takes three minutes costs two others. A full timed mock shows where your child’s time goes.

Sit a full OC mock, free

Same three sections and timing. See the score straight after.

Try a free mock