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1. Find the \(19^{\text{th}}\) term of an \(A.P.\) \(-11\), \(-15\), \(-19\), …
 
The \(19^{\text{th}}\) term \(=\)
 
 
2. Which term of an \(A.P.\) \(16\), \(11\), \(6\), \(1\), ... is \(-54\)?
 
\(-54\) is \(^{\text{th}}\) term of an \(A.P.\)