??????????? "time is 4 minuts faster" ?????? yu meen time is LESS
???????????? "preveeiouslylylyly dae" ???????? yu meen yesterdae
or PRIOR dae
x+(x-4)+(x-8)+(x-12)=10 ours=600 minuts
4x -24=600
4x=600+24=624
x=624/4=156
last dae...x-12=156-12=144 minuts
=2.4 ours