a coffee seller has two types of coffee Brand A costing 5 bits per pound and Brand B costing 3 bits
per pound. he mixes two brands to get a 40 pound mixture. he sold this at 6 bits per pound. the seller gets a profit of 33 1/2 percent. how much he has used Brand A in the mixture?
Choose the correct answer:
A) 10	B) 20	C) 30	D) 40	E) 50
cost price of mixture=(100*selling price of mixture)/(100+profit)=(100*6)/(100+33.5) =600/133.5=Rs 4.50(approximately),   Then ratio of A and B = (4.50-3):(5-4.50)=3:1,   Therefore Brand A in 40 pound mixture=40*3/4= 
<gadget id="calculator">40*3/4</gadget>
<output>30</output>
30   ANSWER:30
<result>C</result>
a coffee seller has two types of coffee Brand A costing 5 bits per pound and Brand B costing 3 bits
per pound. he mixes two brands to get a 40 pound mixture. he sold this at 6 bits per pound. the seller gets a profit of 33 1/2 percent. how much he has used Brand A in the mixture?