Question

20 horas e 40 minutos vale a quantos segundos

Answer 1

1h equivale 60'
20h equivale x
x=20×60
x=1200'+40
x=1240
1' equivale 60''
1240' equivale y
y=1240×60
y=74400
R: 20h e 40 minutos equivale à 74400segundos