Jawabanmu

2014-03-06T20:26:31+07:00
12=60
x=40
12 x 40 = 60x
480=60x
x=480/60
x=8
2014-03-06T20:31:57+07:00
P1 = 40 ; p2 = 60
n1 = x ; n2 = 12

n2/n1 = p2/p1
12/x = 60/40
12/x = 3/2
3x = 24
x  =24/3
x = 8

Jdi,persediaan mkanan itu akn habis dlam wktu 8 hari........ ^_^