Jawapan

2016-08-10T21:56:17+08:00
Awak tukarkan dulu 1 jam ada berapa minit .
2016-08-11T20:56:49+08:00
(24 jam x 7 hari) + 5 jam = 173 jam

(24 jam x 4 hari) + 9 jam = 105 jam

173 jam - 105 jam = 68 jam (2 hari 20 jam)