A leading library charges c cents for the first week that a book is loaned and f cents for each day over one week. What is the cost for taking out a book for d days. Where d is greater than?

Question

A leading library charges c cents for the first  week  that a book is loaned and f cents for each day  over one week. What is the cost for taking out a book for d days. Where d is greater than?

Accepted Answer

সঠিক উত্তর: c +f(d-7)। ব্যাখ্যা:

A leading library charges c cents for the first week that a book is loaned and f cents for each day over one week. What is the cost for taking out a book for d days. Where d is greater than?

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