A circular disc of radius `R` is removed from a bigger circular disc of radius `2 R` such that the circumferences of the discs coincide. The center of mass of new disc is `alpha R` from the center of the bigger disc. The value of `alpha` is

Options

A. `1//3`
B. `1//2`
C. `1//6`
D. `1//4`

Answer

A