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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Gattu uday
2^1 = 2 ,2+2 = 2^2 =4 nd remainder is 0 when it is divided by 4 , next 2+2+2= 2^3= 6 ,if 6 divided by 4 remainder is 2 ,hence 2^3= 2