RB_CH01_Q051. String-like fuse 30 seconds with watch
difficulty ·answer type: strategy·✓Not solved
Problem
You have a string-like fuse that burns in exactly one minute. The fuse is inhomogeneous, and it may burn slowly at first, then quickly, then slowly, and so on. You have a match, and no watch. How do you measure exactly 30 seconds?
Submit answer
You must be signed in to submit answers.