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?
Find the difference between the simple interest and the compound interest at 5% per annum for 2 years on principal of Rs. 2000.
Find the compound interest on Rs. 1000 at the rate of 20% per annum for 18 month when interest is compounded half yearly.
Find the principal if the interest compounded at the rate of 10% per annum for two years is Rs. 420.
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