A diver comes off a board with arms straight

A diver comes off a board with arms straight up and legs straight down, giving her a moment of inertia about her rotation axis of 18 kg nt. She then tucks into a small ball, decreasing this moment of inertia to 3.6 kg m2. While tucked, she makes two complete revolutions in 1.0 s. If she b8dn’t tucked at all, bow many revolutions would she have made in the 1.5 s from board to water?