Rs. 1200 is lent out at 5% per annum simple interest for 3 years. Find the amount after 3 years.
Find the principal if the interest compounded at the rate of 10% per annum for two years is Rs. 420.
Find the compound interest on Rs. 1000 at the rate of 20% per annum for 18 month when interest is compounded half yearly.
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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