A trader mixes 80 kg of tea at 15 per kg with 20 kg of tea at cost price of 20 per kg. In order to earn a profit of 40%, what should be the sale price of the mixed tea? Pick:
A) 22.4
B) 22
C) 20
D) 19.2
E) None of these
C.P. of mixture = 80×15+20×20 /80+20=16   ∴ S.P. = (100+40)/100×16=22.4   22.4nswer 22.4
<result>A</result>
A trader mixes 80 kg of tea at 15 per kg with 20 kg of tea at cost price of 20 per kg. In order to earn a profit of 40%, what should be the sale price of the mixed tea?