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Q: The simple interest on a sum of money is $${4\over 9}$$of the principal and the number of years is equal to the rate percent per annum. The rate per annum is :

A. 0.05
B. $$6{2\over3}\%$$
C. 0.06
D. $$7{1\over5}\%$$
Answer» C. 0.06


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