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.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. ₹2,733.
Let, S be her starting monthly salary, and I be her annual increment.
After 6 years, her salary is ₹28,400, and after 15 years, her salary is ₹52,997
Now,
Salary after 6 years = S + 6I = 28400....(1)
Salary after 15 years = S + 15I = 52997....(2)
Solving eq 1 and 2
⇒ (S + 15I) - (S + 6I) = 52997 - 28400
⇒ 9I = 24597
⇒ I = 24597/9
⇒ I = 2733
Thus, Mrudula's annual increment is ₹2,733