Answer:
2 hours = 7200 seconds
7200/15 = 480
25x480 = 12000 chirps in 2 hours
Explanation:
200
info we are given :
25 chirps per 15 second.
1 hour: 60 minutes since we are trying to find out 2 hours it will be 60+60=120
now divide by 15 and times by 8 (8 x 25)
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