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Thank you so much for your help. :-)
Please help me by solving the below mentioned questions, i have got stuck with. regards,
Q1) There are 45 students in the class, of which 15 are girls. The mean weight of girls is 42 kg and that of boys is 48 kg. Find the mean weight of the entire class.
Q2) The mean 40 numbers was found to be 38. Later on, it was detected that a number 56 was misread as 36. Find the correct mean of the given numbers.
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