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1. \(\)Hoeveel uren passen er in 349200 seconden?\(\)
2. \(\)Hoeveel minuten passen er in 30 uren? \(\)
3. \(\)Hoeveel minuten passen er in 4620 seconden?\(\)
4. \(\)Hoeveel minuten passen er in 67 uren? \(\)
5. \(\)Hoeveel uren passen er in 46800 seconden?\(\)
6. \(\)Hoeveel seconden passen er in 85 minuten? \(\)
7. \(\)Hoeveel minuten passen er in 3540 seconden?\(\)
8. \(\)Hoeveel uren passen er in 64800 seconden?\(\)
9. \(\)Hoeveel seconden passen er in 29 minuten? \(\)
10. \(\)Hoeveel seconden passen er in 27 minuten? \(\)
11. \(\)Hoeveel minuten passen er in 25 uren? \(\)
12. \(\)Hoeveel uren passen er in 3780 minuten?\(\)

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Verbetersleutel

1. \(349200 \text{ seconden}\\=349200:3600\text{ uren}\\=97\text{ uren}\)
2. \(30 \text{ uren}\\=30\times60\text{ minuten}\\=1800\text{ minuten}\)
3. \(4620 \text{ seconden}\\=4620:60\text{ minuten}\\=77\text{ minuten}\)
4. \(67 \text{ uren}\\=67\times60\text{ minuten}\\=4020\text{ minuten}\)
5. \(46800 \text{ seconden}\\=46800:3600\text{ uren}\\=13\text{ uren}\)
6. \(85 \text{ minuten}\\=85\times60\text{ seconden}\\=5100\text{ seconden}\)
7. \(3540 \text{ seconden}\\=3540:60\text{ minuten}\\=59\text{ minuten}\)
8. \(64800 \text{ seconden}\\=64800:3600\text{ uren}\\=18\text{ uren}\)
9. \(29 \text{ minuten}\\=29\times60\text{ seconden}\\=1740\text{ seconden}\)
10. \(27 \text{ minuten}\\=27\times60\text{ seconden}\\=1620\text{ seconden}\)
11. \(25 \text{ uren}\\=25\times60\text{ minuten}\\=1500\text{ minuten}\)
12. \(3780 \text{ minuten}\\=3780:60\text{ uren}\\=63\text{ uren}\)