Ten books of the same series are placed standing side by side, fromleft to right, on a shelf. Each book is 2 in thick. How far is the frontcover of the second book from the last cover of the ninth book??
Ten books of the same series are placed standing side by side, fromleft to right, on a shelf. Each book is 2 in thick. How far is the frontcover of the second book from the last cover of the ninth book??