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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

Hasan bought a pen for his friend. The cost of the pen was Tk 80 before tax. If the total price including tax was Tk 96, what was the tax rate?

A. 6%
B. 6.5%
C. 7%
D. 20%
E. None of these
Explanation: Cost before tax = \(Tk~80\). Total price including tax = \(Tk~96\). Tax amount = \(96 - 80 = Tk~16\). Tax Rate = \((\text{Tax amount} / \text{Cost before tax}) \times 100\%\). Tax Rate = \((16 / 80) \times 100\% = (1/5) \times 100\% = 20\%\).