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Mirela merge la scoala la ora 8:00, are patru ore de cate 50 de minute,iar pauzele au cate 10 minute cu exceptia pauzei mare care are 15 minute.Cat timp petrece Mirela la scoala?

Răspuns :


60+60+60+75=120+60+75=180+75=225minute
1)50×4=200 minute=2 ore 40 minute(patru ore de cate 50 de minute)
2)10×3+15=45(minute, dureaza pauzele in total)
3)200 minute=2 ore 40 minute + 45 minute=240 minute=3 ore 25 (minute,
Mirela petrece la scoala)
Raspuns:240 minute=3 ore 25 (minute, Mirela petrece la scoala)