Ram, who is half as efficient as Krish, will take 36 days to complete a task if he worked alone. If Ram and Krish worked together, how long will they take to complete the task?	Choose the correct choice from the following.
A) 16 days
B) 12 days
C) 8 days
D) 6 days
E) 18 days
Number of days taken by Ram to complete task = 36   Since Ram is half as efficient as Krish , Amount of work done by Krish in 1 day = Amount of work done by Ram in 2 days   If total work done by Ram in 36 days is 36w   Amount of work done by Ram in 1 day = w   Amount of work done by Krish in 1 day = 2w   Total amount of work done by Krish and Ram in a day = 3w   Total amount of time needed by Krish and Ram to complete task = 36w/3w = 12 days   Answer 12 days36 /3= 
<gadget id="calculator">36 /3</gadget>
<output>12</output>
12 days   Answer 12 days
<result>B</result>
Ram, who is half as efficient as Krish, will take 36 days to complete a task if he worked alone. If Ram and Krish worked together, how long will they take to complete the task?