Question

1jam pelajaran lamanya 40mnt.jika dlm 1 hr trdpt 7 jm peljran&di tmbah2x istirahat dmn 1x istirht adlh 15 mnt,pkl brpkah siswa plng jk peljran di mulai pkl 07.00?

Answer 1

(7 x 40) + (2 x 15) = 280 + 30 = 310 menit = 5 jam 10 menit
07.00 + 5 jam 10 menit = 12.10

Jadi, siswa pulang pukul 12.10

Answer 2

1 jam = 40
7 jam = 280
1x istrirahat = 15
2x istrirahat = 30

40 × 7 = 280 + 30 = 310
310= 5 jam lewat 10 menit
jadi siswa pulang jam 12.10