A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a smooth incline and released. Least time will be taken in reaching the bottom by

A solid sphere, a hollow sphere and a disc, all having same mass and r

1.	A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a smooth incline and released. Least time will be taken in reaching the bottom by
Answer» the SOLID sphere the hollow sphere the DISC all will take same TIME Answer :D