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 25%, what should be the sale price of the mixed tea? Choose one:
A) 23.75 B) 22 C) 20 D) 19.20 E) None of these
C.P. of mixture = 80×15+20×20/80+20=16   ∴ S.P. = (100+25)/100×16=20   Answer 20
<result>C</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 25%, what should be the sale price of the mixed tea?