The mean weight per student in a group of 7 students is 55 kg the individuals weight of 6 of them are 52 ,54,55,53,56and 54 find the weight of seven students
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1
Answer:
61 kg
Step-by-step explanation:
The individual weights of 6 of them (in kg) are 52,54,55,53,56 and 54.
Sum of weights of 6 people = 52+54+55+53+56+54
=324
let the weight of seventh person be x
The mean weight per student in a group of 7 students is 55 kg.
Hence the weight of seventh student is 61 kg
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weight of 1 student = 55kg
weight of 7 student = 55*7=385
total weight of six student =324
weight of 7th students =385-324=61
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