Sagot :
2s 30 dk + 2s = 4s 30 dk eder. Bu da 60.4 + 30 = 270 dk eder. #real-
Cevap:
1 saat= 60 dakika
60+60= 120 Azra
60+60+30= 150 Gizem
150+120= 270 dakika ders çalışmışlar.
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