diff --git a/04/3 - Second Guessing.py b/04/3 - Second Guessing.py
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+++ b/04/3 - Second Guessing.py	
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+# goal: print out the number of seconds in a week 
+secondsPerMinute = 60
+secondsPerHour = secondsPerMinute * 60 # todo: check this!
+secondsPerDay = secondsPerHour * 24
+daysPerWeek = 5
+daysPerWeek = daysPerWeek + 2 # weekends are disabled!?
+print(secondsPerDay * daysPerWeek)