Question Unless otherwise posted, the maximum speed limit in a business district is: Answers 70 mph. 55 mph. 40 mph. 30 mph. Explanation When driving in a business district, the speed limit is 30 miles per hour. If a different speed limit is posted, follow the posted speed limit. Pass your DMV Written Test with flying colors Take me to the cheat sheet New Hampshire This questions appears in the following tests: New Hampshire Practice Test 3 New Hampshire Practice Test 28