 <translate> (x*3*1)/100 + [(4000 - x)*5*1]/100 = 144
3x/100 + 200 – 5x/100 = 144
2x/100 = 56 è x = 2800
So, the answer is (C). <yor> (x*3*1)/100 + [(4000 - x) *5*1]/100 = 144 3x/100 + 200 <unk> 5x/100 = 144 2x/100 = 56 è x = 2800 Nítorí náà, ìdáhùn náà ni (C). 