Test 19 / 20
Five team members must cross a river. The boat carries a maximum of 2 people. Each person has a different crossing speed (if two people are in the boat, it moves at the speed of the slower person): Manager: 1 second Assistant Manager: 3 seconds Supervisor: 6 seconds Assistant Supervisor: 8 seconds Specialist: 12 seconds What is the shortest possible time for everyone to cross?
The Purpose: This exercise measures Strategic Planning and Executive Function. It forces the brain to look for non-obvious efficiencies—specifically, how to "bundle" the slowest members together to minimize time loss.
The Breakdown: The key is to avoid having the slowest people (8s and 12s) cross separately. If they cross together, you only "pay" for the slowest person once.
The Calculation:
1s and 3s cross together (3s), then 1s returns (1s). [Total: 4s]
8s and 12s cross together (12s), then 3s returns (3s). [Total: 15s]
1s and 6s cross together (6s), then 1s returns (1s). [Total: 7s]
1s and 3s cross together (3s). [Total: 3s]
Grand Total: 4 + 15 + 7 + 3 = 29 seconds.
Stay Sharp Tip: Solving visual math equations is a fantastic exercise for your brain's Problem-Solving skills. Regular practice with professional Intelligence Quizzes ensures that your mind stays active, helping you maintain mental clarity and cognitive resilience in your daily life.
Free Logical Reasoning Test: How Sharp Is Your Mind?
This test focuses on pure logical deduction. Instead of complex numbers or visual shapes, you'll solve puzzles based on rules, relationships, and everyday scenarios. It’s an excellent mental workout to improve your analytical skills and keep your decision-making sharp! 🧠
