Officer A patrols 36 streets / 4 hours = <<36/4=9>>9 streets/hour.

Officer B patrols 55 streets / 5 hours = <<55/5=11>>11 streets/hour

Together officer A and B patrol 9 streets/hour + 11 streets/hour = <<9+11=20>>20 streets/hour.

# Answer

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Question:
Police officer A patrols 36 streets in 4 hours. His colleague, officer B, patrols 55 streets in 5 hours. How many streets will both officers patrol in one hour?
Answer:
Let's think step by step.

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Police officer A patrols 36 streets in 4 hours. His colleague, officer B, patrols 55 streets in 5 hours. How many streets will both officers patrol in one hour?
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