the mean of marks obtaimed by 15 students is 63 if marks of two students were read wrongly 73 insted of 78 and 59 instead of 69,find the correct mean
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akshatrana155:
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bhai
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the mean wages of 216 workers is rupees 79 if one workers left the mean was calculated again and was found to be ruppes 82 find the wages of the workers which had left
this is a corect question
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