1. If 15, k-1, -1 are in arithmetic progression, then the value of k'i – InterviewSolution

1.	1. If 15, k-1, -1 are in arithmetic progression, then the value of k'isa) 7b) 14c) 16d) 17
Answer» If the terms are in aphencethe common difference will be samehence-1-(k-1)=(k-1)-15-1-k+1=k-1-152k=16k=8

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