Question

A sum of money doubles itself in 10 years at simple interest. What is the rate of interest?

A 5% Correct Answer Incorrect Answer
B 10% Correct Answer Incorrect Answer
C 15% Correct Answer Incorrect Answer
D 20% Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Let the sum = Rs. x ∴ S.I = Rs. x ∴ R = (x× 100)/(x× 10) = 10% p.a.

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