First order deactivation rate constants for soluble and immobilized amyloglucosidase enzyme are 0.03 min-1 and 0.005 min-1

Q. First order deactivation rate constants for soluble and immobilized amyloglucosidase enzyme are 0.03 min^-1 and 0.005 min^-1, respectively. The ratio of half-life of the immobilized enzyme to that of the soluble enzyme is (rounded off to the nearest integer)       

Ans: 6 to 6