An unusual bicycle has 20 spokes on the front wheel and twice as many spokes on the back wheel. How many spokes does the bicycle have?
Step-by-step reasoning process below:
60
The back wheel has double the spokes the front wheel has, which means the back wheel has 20 * 2 = 40 spokes.

In total, the bicycle has 20 + 40 = 60 spokes.

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The final answer: 60