David received Rs.6000 as his share out of the total profit of Rs.9000 which he and Dave earned at the end of 1 years. If David invested Rs.120000 for 6 months, whereas Dave invested his amount for the whole yr, what was the amount invested by Dave?	Select.
A) 28000  B) 30000  C) 34000  D) 35000  E) 36000
Suppose Ramesh invested Rs. x. Then,   Manoj : Ramesh = 120000 * 6 : x *12.   720000/12x: 6000/3000   x = 30000   (30000)
<result>B</result>
David received Rs.6000 as his share out of the total profit of Rs.9000 which he and Dave earned at the end of 1 years. If David invested Rs.120000 for 6 months, whereas Dave invested his amount for the whole yr, what was the amount invested by Dave?