- Newest on top
Straight line sum - math puzzle
Correct the equation above by inserting one straight line.
Apple - math puzzle
| Eric has a perfect spherical shaped apple. With a cilindrically shaped drill bit he removes the core of the apple. A cilindrically shaped hole remains, the center of this hole is exactly at the center of the apple. Eric measures the length of the hole with a piece of rope. It turns out to be exactly 8 cm. What is the volume of the remaining apple? |
|
Number magic - math puzzle
If you multiply me by 2, subtract 1, and read the reverse the result you'll find me. Which numbers can I be?
- Newest on top