a fruit vender buys 4 varieties of apple costing rs. 140,rs.150,rs.160 and rs.170 per kg in the ratio 2:3:4:1 and mixes all the four varieties and sells at 50% profit. What is the selling price per kg of apple?	Select the correct option:
A) 225	B) 228	C) 230	D) 231	E) 235
CP = 140*2+150*3+160*4+170*1= 
<gadget id="calculator">140*2+150*3+160*4+170*1</gadget>
<output>1_540</output>
1540   SP= 1.5*1540= 
<gadget id="calculator">1.5*1540</gadget>
<output>2_310</output>
2310   Total no.of kgs=2+3+4+1= 
<gadget id="calculator">2+3+4+1</gadget>
<output>10</output>
10   SP per kg=2310/10= 
<gadget id="calculator">2310/10</gadget>
<output>231</output>
231   ANSWER:231
<result>D</result>
a fruit vender buys 4 varieties of apple costing rs. 140,rs.150,rs.160 and rs.170 per kg in the ratio 2:3:4:1 and mixes all the four varieties and sells at 50% profit. What is the selling price per kg of apple?