👤

a) 3h 7 min 10 s-1h 6min 20s=?(s)
b) 72 km/h +20 m/min =?(m/s)


Răspuns :

a)3h7'10"-1h6'20"=2h50"
b)1200m/min +20 m /min=1220m/min=20, (3)m/s