Hello! Let's solve it using Rule of Three:
considering unit of time = 1 minute
[tex]\begin{gathered} \frac{2\text{ sec}}{60\text{ sec}}=\frac{3\text{ revolutions}}{x\text{ revolutions}} \\ \\ 2\cdot x=60\cdot3 \\ 2x=180 \\ x=\frac{180}{2} \\ x=90\text{ revolutions} \end{gathered}[/tex]So, the bike will travel 90 revolutions per minute.
