2. 60 orang . 20 hari = x orang . 15 hari
x= 120 : 15 = 80 orang
tambahan orangnya = 80-60 = 20 (A)
3. abc^3 x 1/ac^2 = abc (A)
cuman bisa yang nomor 3 hehe^_^
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2. 60 orang . 20 hari = x orang . 15 hari
x= 120 : 15 = 80 orang
tambahan orangnya = 80-60 = 20 (A)
3. abc^3 x 1/ac^2 = abc (A)
cuman bisa yang nomor 3 hehe^_^