An employee can choose one of two methods of annual payment either an annual salary of Tk. 35,000 with no commission or an annual salary of Tk. 10,000 plus a 20% commission on her annual sales. What must be her total annual sales to get the same annual payment in either method?
A. Tk. 100,000
B. Tk. 120,000
C. Tk. 125,000
D. Tk. 130,000
Explanation: মনে করি, total annual sales \('x'\) হলে 2টি method এই annual payment same হবে। \(35,000 = 10,000 + 0.20x \Rightarrow 0.20x = 35,000 - 10,000 \Rightarrow 0.2x = 25,000 \Rightarrow x = 25,000 / 0.2 = 125,000\).
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