A dealer had 24 mobile phones. He sold some of them at a profit of Tk. 950 each and he sold the rest at a loss of Tk. 500 each. If his total profit was Tk. 9,750, how many phones did he sell at a loss?
A. 6
B. 10
C. 15
D. 9
সঠিক উত্তরঃ
D.
9
Explanation:
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