Question

The mean weight of 25 students of a class is 52kg. If the mean weight of the first 13 student of the class is 48kg and that of the last 13 students is 55kg. find the weight of the 13th student.​

Answer 1

Answer:

39kg

Step-by-step explanation:

Weight of first 25 students= (W1-25/25)=52

W1-25= 1300

Weight of 1st 13 students= (W1-13/13)=48

W1-13= 624

Weight of next 13 students= (W13-26/13)=55

W13-26=715

W1-25 + W26= W1-26

624+715+W26=1339

W26= 39kg

Answer 2

Step-by-step explanation:

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