8 hari+480 jam - 1 minggu = ..... hari

480 jam = 480 : 24
              = 20 hari

1 minggu = 1 x 7
                = 7 hari

Jadi : 8 hari + 20 hari - 7 hari = 28 hari - 7 hari
                                               = 21 hari

Semoga Membantu :)

8 hari

1 hari = 24 jam
24/480 = 20 hari

1 minggu = 7 hari

20 + 8 - 7 =21 hari

cmiiw