19th term of the A.P.: 10, 7, 4, ... is
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → −44
The \(n\)th term of an A.P. is \(a_n=a+(n-1)d\), where \(a\) is the first term and \(d\) the common difference.
\(a=10\), \(d=7-10=-3\)
\(a_{19}=10+18\times(-3)=10-54=\) −44