A man s annual salary is 30 and after 10 years ... - SS2 Mathematics Sequence and Series Question
A man’s annual salary is \(\$ 30\) and after \(10\) years of service, he has a cumulative salary of \(\$ 1014\), find his initial salary.
\[T_{n} = a + (n - 1)d\]
\[T_{10} = a + (10 - 1)1014\]
\[1014 = a + (10 - 1)30\]
\[1014 = a + (9)30\]
\[1014 = a + 270\]
\[1014 - 270 = a\]
\[a = \$ 744\]
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