The first bank established in India in the year 1770 was Bank of Hindustan followed by the General Bank of India in the year 1786. The State Bank of India (SBI) was the still existing oldest bank which was established in the year 1806 in the name of Bank of Calcutta.
The compound interest accrued on an amount of Rs.25,500 at the end of three years is Rs.8,440.5. What would be the simple interest accrued on the same amount at the same rate in the same period?