The concentration of spirit in three different vessels A, B and C are 45%, 30% and 16% respectively. If 4 litres from vessel A, 5 litres from vessel B and 6 litres from vessel C are mixed, find the concentration of spirit in the resultant solution.
Choices.
A) 32.10%	B) 33.60%	C) 34%	D) 28.40%	E) 36%
Quantity of spirit in new solution=(4*45/100)+(5*30/100)+(6*16/100)=1.8+1.5+1.5=4.26 liters   So % concentration of spirit=100*4.26/(4+5+6)= 
<gadget id="calculator">100*4.26/(4+5+6)</gadget>
<output>28.4</output>
28.40%   ANSWER:28.40%
<result>D</result>
The concentration of spirit in three different vessels A, B and C are 45%, 30% and 16% respectively. If 4 litres from vessel A, 5 litres from vessel B and 6 litres from vessel C are mixed, find the concentration of spirit in the resultant solution.