Find the simple interest on Rs. 5200 for 2 years at 6% per annum.
Interest obtained on a sum of Rs. 5000 for 3 years is Rs. 1500. Find the rate percent.
What is the simple interest on a sum of Rs. 700 if the rate of interest for the first 3 years is 8% per annum and for the last 2 years is 7.5% per annum?
What is the difference between the simple interest on a principal of Rs. 500 being calculated at 5% per annum for 3 years and 4% per annum for 4 years?
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