Question

in a village ,the bell rings every 30 minutes at the Junior school and every 40 minutes at the high school .Both schools start lessons at 8a.m .

At what times betweem 8 a.m and 2:30 p.m do the bells both ring at the same time?
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Answer 1

Resposta: 10 horas

Explicação passo-a-passo:

mmc 30 , 40 =120

120 = 2 horas

8 horas + 2 horas = 10 horas