The age of the universe is about `10^17` years whereas the mankind has existed for `10^9` years. For how many seconds would the man have existed if the age of universe were 1 day ?

Explanation

To solve the problem of determining how long mankind would have existed if the age of the universe were scaled down to one day, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Values**:
- Age of the universe = \(10^{17}\) years
- Age of mankind = \(10^{9}\) years

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