Simple interest on a certain sum is 16 over 25 of the sum. Find the rate per cent and time, if both are equal.\nOptions:\n(A) 8% and 8 years\n(B) 6% and 6 years\n(C) 10% and 10 years\n(D) 12 % and 12 years\n(E) None of these Stream of consciousness first, then make a decision:
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16⁄25P = P×R×R/100\n⇒ R2 = 1600⁄25 ⇒ R = 40⁄5 = 8%\nAlso, time = 8 years
Thus, the answer is (A).
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