If one wanted to profit from the extreme semiconductor demand which our global civilization has, would it be better to manufacture the chips or to make and sell the machines which are needed for the chip manufacturing?
A sticker album has 35 pages, each with 25 stickers distributed in five rows and five columns. The stickers are ordered and numbered from 1 to 875.
In this album, the 7th, 14th, 21st, 28th sticker and so on are considered special stickers. The picture illustrates the first page of this album.
After the album is completed with all the stickers, which is the last page that will start with a special sticker?
