A clock chimes once every 16 minutes. How many times will it chime between 10:00 AM and 12:45 PM on the same day?

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A 9
B 10
C 11
D 12

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Answer: B. 10

From 10:00 AM to 12:45 PM is 2 hours 45 minutes = 120 + 45 = 165 minutes.
165 ÷ 16 = 10 remainder 5, so the clock chimes 10 times in this interval (at 10:16, 10:32, ... up to 12:40).

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A clock chimes once every 16 minutes. How many times will it chime between 10:00 AM and 12:45 PM on the same day?

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