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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Abhishek kumar singh![best-answer]() 
			
here in the question number of terms is not mention it should be mentioned in the question question is incomplete but on the basis of available information I had tried to provide solution here is your solution in attached picture
yes i thought that the question is incomplete and its solution in module also wrong . solution in module only calculate the sum of 10 terms only . so. thank you
if in question number of terms is given then use formula of sum of n termn of GP