Percentage deposit by Rohit in bank = 12% of total income
Money actually deposited by him = Rs. 1440
Let total income of Rohit = Rs. X
So,
\({X} =\frac{X\times12}{100}\) =1440
\({X} = \frac{1440\times100}{12}\) =Rs. 12000
∴ Total income of Rohit = Rs.12000