A solid sphere, a hollow sphere and a disc, all having 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 mass and radius

1.	A solid sphere, a hollow sphere and a disc, all having 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