From what height a block of ice must fall into a well so that (1^(th))/100 of its mass may he melted (g = 10m//s^(2))

From what height a block of ice must fall into a well so that (1^(th))

1.	From what height a block of ice must fall into a well so that (1^(th))/100 of its mass may he melted (g = 10m//s^(2))
Answer» 300 m 336 m 660 m none Answer :B