3 dm3/detik = cm3/menit

3 × 1 dm × 1 dm ×1 dm
3× 10 cm×10cm×10cm
3×1000 cm3
3.000cm3×60 detik
180.000cm3/menit

1 dm = 10 cm
1 dm³ = 10³ cm³

1 menit = 60 detik
1 detik = 1/60 menit


3 dm³/ detik
= 3 (10³ cm³) / (1/60 menit)
= 3 • 10³ × 60/1 cm³/menit
= 180×10³ = 180000 cm³/menit ✓