23min 44s=23 x 60 +44=1380+44=1422 s
23min 44s*6=1422s x 6=8532s
25min 44s=25 x 60+44=1500+44=1544s
25min 44s x 8=1544s x 8=12352s
4h 15min 23s*7=(4x3600+15x60+23)x7=(14400+900+23)x7=15323s x 7=107261s
9h 45min:6 =(9x60+45):6=(540+45):6=585:6=97,5min
12h 24min 24s:8=(12x3600+24x60+24):8=(43200+1440+24):8=44664s :8=5583 s
18h 36min 27s:3=(18x3600+36x60+27):3=(64800+2160+27):3=66987s :3=22329s
