d
Archimedes principal states that weight of body displaced by \(liquid=upthrust.\)

\(60 \times g + V \times 0.6 \times {10^3}\,g = V \times 1000\,g\)

\(60 + 600\,V = 1000V\)

\(60 = 400V\)

\(V = \frac{{60}}{{400}} = \frac{3}{{20}}{m^3}\)

Where, \(V\) is the volume of wooden log.