1 . Buffet dinner at a restaurant costs Tk 35.50 . If the sales tax was more than 10 percent but less than 15 percent of the pre-tax cost of the dinner, then the total amount paid must have been between--

• A. Tk 40 & Tk 42
• B. Tk 39 & Tk 41
• C. Tk 38 & Tk 40
• D. Tk 37 & Tk 39
• D. None of these

Answer: Option B

Explanation: