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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Reshma gupta
hi Anushka,in this question two answers are correct but the difference is that for that first answer we are using our analytical logic according to the fact given that there are n positive numbers so the sum would be also positive integer but the answer d shows us a limit that it could not be less than n, and it is based on airthmatical formulas. so answer d is more scietific and quantitative than answer 1 but no one can incorrect it.