A man invested Rs 40,000 in mutual fund for 3 years. In first year, his amount is increased by `10%` in `2^(nd)` year his amount is decreased by `X%` and in `3^(rd)` years, his amount is again increased by `20%` and he got Rs 4880 more at the end. Find value of X?

Options

A. 15
B. `12.5`
C. 20
D. `13 (1)/(3)`

Answer

A