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Fahim bought 48 headphones and found that 8 of the headphones were not working for which his per unit cost increased by Tk. 24. What was the cost of each headphone?

A. 100

B. 140

C. 160

D. 120

E. None of these

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সঠিক উত্তরঃ D. 120

Explanation:

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Fahim bought 48 headphones and found that 8 of the headphones were not working for which his per unit cost increased by Tk. 24. What was the cost of each headphone?