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50 sapi + 10 sapi
60 sapi = x
50/60 = 18/x
50/60 = x/18
60.x = 18. 50
60x = 900
x = 900/60
x=15
jadi mknn akn hbz dl waktu 15 har :D
50+10 sap ------ ?
krna sapinya tambah itu udh pasti makannya bkl cepat habis, jadi 50nya yg dikali 18 trus di bagi 60
50 x 18 / 60 = 15 hari