A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:
Choose the correct choice:
A) 4 days
B) 6 days
C) 8 days
D) 12 days
E) 15 days
Explanation:   Suppose A, B and C take x,	x/2	and	x/3	days respectively to finish the work.   Then, 1/X	+	2/X	+	3/X =	1/2   6/X	=	1/2   x = 12.   So, B takes (12/2)= 
<gadget id="calculator">(12/2)</gadget>
<output>6</output>
6 days to finish the work.   ANSWER IS 6 days
<result>B</result>
A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in: