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A fog horn sounds a blast for 2 seconds and then is silent for 8 seconds. 

 

How many blasts are made in a 3 1/2 hour period?

 Feb 23, 2020

Best Answer 

 #1
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2 second blast + 8 second pause= 1 blast every ten seconds

 

60 seconds in a minute= 6 blasts a minute

 

60 minutes in an hour = 360 blasts an hour

 

Then just multiply that by 3.5 and that is your answer

 Feb 23, 2020
 #1
avatar+9 
+2
Best Answer

2 second blast + 8 second pause= 1 blast every ten seconds

 

60 seconds in a minute= 6 blasts a minute

 

60 minutes in an hour = 360 blasts an hour

 

Then just multiply that by 3.5 and that is your answer

Josh1222 Feb 23, 2020

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