If the mass of earth and radius suddenly become 2 times and 1//^("th") of the present value, the length of the day becomes

If the mass of earth and radius suddenly become 2 times and 1//^("th")

1.	If the mass of earth and radius suddenly become 2 times and 1//^("th") of the present value, the length of the day becomes
Answer» 24th 6h 3/2h 3h Answer :D