List of top General Management Questions on Simple Interest

If the simple interest on a certain sum of money for $3\frac{1}{2}$ years at 12% per annum is Rs 60 less than the simple interest on the same sum for $4\frac{1}{2}$ years at 10% per annum, then the sum (in Rs) is:
Chirag takes some loan from Dinesh for 2 years at the rate of 10% per annum. And after 2 years, he gave back Rs 6000 to Dinesh and completed the payment of his loan. The interest paid by Chirag is:
A sum of Rs.61,000 is lent on simple interest in two parts in such a way that the interest on one part at 10% for 5 years is equal to that on the other part at 8% for 8 years. The sum lent at 10% is:
Aman invested a sum of Rs.P for 2 years at 12% p.a. compound interest and received some interest. Ajay invested Rs.(P+3000) for 3 years at 8% p.a simple interest and received the interest same as received by Aman. The sum invested by Aman is: