Question
Mrudula starts her job with a certain monthly salary and
earns a fixed increment every year. If her salary was ₹28,400 after six years of service and ₹52,997 after fifteen years, find her annual increment.Solution
Let the starting salary be ₹S and the annual increment be ₹x. After 6 years: Salary = S + 5x = 28,400 → (1) After 15 years: Salary = S + 14x = 52,997 → (2) Subtract (1) from (2): (S + 14x) - (S + 5x) = 52,997 - 28,400 9x = 24,597 x = 24,597 / 9 = ₹2,733 Annual increment is ₹2,733.
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