How many cubes are there?
Cubes of the same size are stacked in the corner of a room as shown. How many cubes are there?Correct answers: 176
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
Fountain penIn 1830, D. Hyde of Reading, Pa., patented the fountain pen. However, it was 1884 before a truly practical fountain pen was invented by Lewis Waterman. In the first year, 200 Waterman pens were made by hand. Subsequently, Waterman designed machinery to produce them in larger quantities. |