Explications étape par étape:
4semaines = 7×4j= 28j
3 jours = 24h×3=72h
10h=60min×10 = 600min
15h=60min×15=900min
50min =60s×50=3000s
Réponse :
4semaine=28 jours
3jour =
72 heures
10 heures=
600min
15heures=
900min
50min=
3000sec
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Explications étape par étape:
4semaines = 7×4j= 28j
3 jours = 24h×3=72h
10h=60min×10 = 600min
15h=60min×15=900min
50min =60s×50=3000s
Réponse :
4semaine=28 jours
3jour =
72 heures
10 heures=
600min
15heures=
900min
50min=
3000sec