# Arithmetic Aptitude :: Simple Interest

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## 7. Simple interest on an amount at 4% per annum for 13 months is more than the simple interest on the same sum for 8 months at 6% per annum by rs 40.What is the principle amount ?

**Answer:**

**Option B**

**Explanation :**

P*4*13/(100*12) - p*6*8/(100*12)= 40

=> 4p/(100*12) = 40.

=> p = 12000

**Asked In :: **
Capgemini

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