|
|
|
Hourglasses 2
Puzzles -> Measuring Puzzles
 An eccentric professor used a unique way to measure time for a test lasting 15 minutes.
He used just two hourglasses. One measured 7 minutes and the other 11 minutes.
During the whole time he turned the hourglasses only 3 times.
How did he measure the 15 minutes? |
.
-\./^\./-
Do you have the answer? Check against our
solution!
|
|
|
Home
