Is my reasoning correct?
1. Insufficient; sum of all terms = 3124
2. Insufficient; Sum of all terms/n= 4
Combining 1 and 2 we get 3124/n=4, so n=3124/4, hence C
1. Insufficient; sum of all terms = 3124
2. Insufficient; Sum of all terms/n= 4
Combining 1 and 2 we get 3124/n=4, so n=3124/4, hence C
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