A person places Rs 500 in an account that interest compounded continuously. Assuming no additional deposits or withdrawals, how much will be in the account after seven years if the interest rate isa constant 8.5 percent for the first four year and a constant 9.25 percent for the last three years

Explanation

To solve the problem step by step, we will break it down into two parts: the first four years with an interest rate of 8.5%, and the last three years with an interest rate of 9.25%.

### Step 1: Calculate the amount after the first 4 years

1. **Initial Deposit**:
\[ P = 500 \text{ Rs} \]
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