InterviewSolution
Saved Bookmarks
| 1. |
There are 8436 steel balls, each with a radius of 1cm, stacked in a pile, with 1 ball on top, 3 balls in the second layer, 6 in the third layer, 10 in the fourth layer and so on. The number of horizontal layers in the pile is ___. |
|
Answer» There are 8436 steel balls, each with a radius of 1cm, stacked in a pile, with 1 ball on top, 3 balls in the second layer, 6 in the third layer, 10 in the fourth layer and so on. The number of horizontal layers in the pile is |
|