The present red blood cells (RBC) count of a person is 54000 and it increases at a rate of 5% per day. What would be the RBC count after two days ?

Options

A. 59535
B. 60001
C. 60000
D. 58535

Answer

To solve the problem of calculating the red blood cell (RBC) count after two days given an initial count and a daily percentage increase, follow these steps:

### Step 1: Understand the initial RBC count and the rate of increase
- The initial RBC count is given as 54,000.
- The daily increase rate is 5%.

### Step 2: Calculate the RBC count after the first day
- To find the increase after one day, calculate 5% of the initial count.

\[ \text{Increase after 1 day} = \frac{5}{100} \times 54000 = 0.05 \times 54000 = 2700 \]

- Now, add this increase to the initial count to find the new count after one day.

\[ \text{RBC count after 1 day} = 54000 + 2700 = 56700 \]

### Step 3: Calculate the RBC count after the second day
- Now, we need to calculate the increase for the second day based on the new count (56,700).

\[ \text{Increase after 2nd day} = \frac{5}{100} \times 56700 = 0.05 \times 56700 = 2835 \]

- Add this increase to the count after the first day to find the new count after two days.

\[ \text{RBC count after 2 days} = 56700 + 2835 = 59535 \]

### Final Answer
- The RBC count after two days will be **59,535**.

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