A) 1 kwintal = ... gr. B) 60 detik = ...jam???

A) 1 kuintal = .... gr
1 kuintal = 100 kg
1 kg = 1000 gr
1 kuintal = 1000 × 100 = 100.000 gr

B) 60 detik = .... jam
1 jam = 3600 detik
60 detik = 60/3600 = 0,016 jam