Mizan sells Televisions. On three sales, Mizan has received commissions of Tk. 385, Tk. 70 and Tk. 190, and he has one additional sale pending. If Mizan is to receive an average (arithmetic mean) commission of exactly Tk. 220 on the four sales, then the fourth commission must be:
Solution
Correct Answer: Option D
Mijan’s total commission=(385+70+190)=645 tk after selling four total commission= (220x4)=880 tk so,from 4rth sell commission=(880-645)=235 tk
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