Proszę o obliczenia :
1,6h=.........min
2,4h=.......s
2/5h=......min
4i1/8=..... s
1. 65 minut
2. 150 minut
3. 12 minut
4. 248 minut
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1. 65 minut
2. 150 minut
3. 12 minut
4. 248 minut