HBS Study Guide 2026

Everything you need to pass the HBS exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 HBS Exam Format at a Glance

100
Questions
90 min
Time Limit
80.00%
Passing Score

📚 HBS Topics to Study (22)

✍️ Sample HBS Questions & Answers

1. Which gas do plants absorb during photosynthesis?
Carbon dioxide

Plants absorb carbon dioxide and use sunlight and water to produce glucose and oxygen through photosynthesis.

2. All mammals are warm-blooded. Dolphins are mammals. Which conclusion must be true?
Dolphins are warm-blooded

By applying the syllogism, since all mammals are warm-blooded and dolphins are mammals, dolphins must be warm-blooded.

3. Anna, Ben, and Cara each have a different pet: a cat, a dog, or a rabbit. Anna does not have the cat. Ben does not have the dog. Cara has the rabbit. Who has the cat?
Ben

Cara has the rabbit, so Anna and Ben share cat and dog; since Anna does not have the cat, Ben must have the cat.

4. What is 'pathetic fallacy'?
Using weather or nature to reflect a character's emotions

Pathetic fallacy attributes human emotions to nature or weather to mirror a character's feelings.

5. If 4 workers can build a wall in 6 days, how many days will 8 workers take (same rate)?
3 days

Total worker-days = 4 × 6 = 24; with 8 workers: 24 ÷ 8 = 3 days.

6. A book has 320 pages. Maya reads 40 pages each day. How many days will it take her to finish?
8 days

320 ÷ 40 = 8 days.

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Your HBS Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation
HBS Study Guide 2026 — Exam Format, Topics & Practice Questions