Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science) 
		 
			 
			 
			 
			 
			 
			 
			 
			 
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Ruby negi![best-answer]() 
			
complete solution...
this is a simple ques
only u have to apply kvl
note the direction of 3A is given. and the battery is given in other side so u can take the current direction like this(in the figure)
for any doubt u can ask