17february

Totally Wrong Problem

3 friends went to buy a clock and they contributed $20 each for the $ 60 clock
later the shopkeeper discovered that it was of $ 50 only and sent a servant to return them $ 10. The servant unable to divide 10 among the 3, keeps $4 for himself and gives them 2$ each.
so now each friends expenditure is $ 18 only 18*3=54 so $ 54 given by the friends and 4 $ are with the servant
total = 54+4 = 58. Where did 2$ go??

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