Buffet dinner at a restaurant costs Tk. 3550(excluding sales tax). 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

Solution

Correct Answer: Option B

The minimum value of 10% including tax =- 35.50+3.55 = 39.05

And the maximum value of 15% including tax = 35.50+ 5.325 = 40.825

So, the total amount will be paid Tk. 39 and tk. 41

Solution

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