A producer of tea blends two varieties of tea from two tea gardens one costing Rs 18 per kg and another Rs 20 per kg in the ratio 5 : 3. If he sells the blended variety at Rs 26 per kg, then his gain percent is	Pick one:
A) 12%  B) 39%  C) 14%  D) 15%  E) 16%
Explanation:   Suppose he bought 5 kg and 3 kg of tea.   Cost Price = Rs. (5 x 18 + 3 x 20) = Rs. 150.   Selling price = Rs. (8 x 26) = Rs. 208.   Profit = 208 - 150= 
<gadget id="calculator">208 - 150</gadget>
<output>58</output>
58   So, Profit %= (58/150) * 100 = 39%   Option 39%
<result>B</result>
A producer of tea blends two varieties of tea from two tea gardens one costing Rs 18 per kg and another Rs 20 per kg in the ratio 5 : 3. If he sells the blended variety at Rs 26 per kg, then his gain percent is