Rajan mixed 24 kg of butter at Rs. 200 per kg with 36 kg butter at the rate of Rs. 150 per kg. At what price per kg should he sell the mixture to make a profit of 40% in the transaction?	Select the correct option
A) Rs.129 B) Rs.120 C) Rs.238 D) Rs.178 E) Rs.126
CP per kg of mixture = [24*200) + 36*150)]/(24 + 36)   = Rs. 10200/60 =Rs. 170   SP = Rs.170 + 170*40/100   = Rs.170+68   = Rs.238   Answer:Rs.238
<result>C</result>
Rajan mixed 24 kg of butter at Rs. 200 per kg with 36 kg butter at the rate of Rs. 150 per kg. At what price per kg should he sell the mixture to make a profit of 40% in the transaction?