If a bicycle wheel has 48 spokes, then the angle between a pair of two consecutive spokes is
5\(\tfrac{1}{2}\)
7\(\tfrac{1}{2}\)
\(\tfrac{2}{11}\)
\(\tfrac{2}{15}\)
Step 1: A full turn around the hub is \(360^\circ\).
Step 2: With 48 spokes, there are 48 equal gaps. Angle of one gap = total angle ÷ number of gaps.
\[ \text{Angle per gap} = \dfrac{360^\circ}{48} \]
Step 3: Divide:
\[ \dfrac{360}{48} = 7.5 \]
\[ 7.5^\circ = 7 \tfrac{1}{2}^\circ \]
Conclusion: The angle between two consecutive spokes is \(7 \tfrac{1}{2}^\circ\). So the correct option is B.