100%-(40%+30%) = 100%-70% = 30%
x - ankietowani
30% = 24 os.
100% = x
x = (100*24)/30
x = (10*24)/3
x = 240/3
x = 80 [os.]
Ankietowanych było 80 osób.
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100%-(40%+30%) = 100%-70% = 30%
x - ankietowani
30% = 24 os.
100% = x
x = (100*24)/30
x = (10*24)/3
x = 240/3
x = 80 [os.]
Ankietowanych było 80 osób.