Arithmeticeasy · Past Paper
A sum of money doubles itself in 10 years at simple interest. What is the rate?
A5%
B10%
C15%
D20%
✓ Correct Answer: B — 10%
If P doubles, I = P. So P = (P*10*R)/100 => 1 = 10R/100 => R = 10%.
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✓ Correct Answer: B — 10%
If P doubles, I = P. So P = (P*10*R)/100 => 1 = 10R/100 => R = 10%.
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