At what rate of simple interest will a sum of money double itself in 8 years?
A. 10%
B. 8%
C. 12%
D. 12.5%
A. 10%
B. 8%
C. 12%
D. 12.5%
Best answer
Answer: D. 12.5%
Answer: (D) 12.5%
Doubling means SI = P, i.e. 100% in 8 years. Rate = 100 ÷ 8 = 12.5% per annum.
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