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a fost răspuns

Transforma 1 si 2 h
2 si 5 h 1 si 3 h 3 si 5 h
A) minute
B) in secunde

Răspuns :

1/2h=1/2x60min=60/2=30min
2/5h=2/5x60min=120/5=24 min
1/3h=1/3x60min=60/3=20min
3/5h=3/5x60min=180/5=36min

1/2h=30min=30x60s=1800s
2/5h=24minx60s=1440s
1/3h=20minx60s=1200s
3/5h=36minx60s=2160s

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