Question

The mean weight of 10 students is 50 Kg when two students left the class the mean weight becomes 48 Kg. Find the mean weight of students who left the class

Answer 1

Answer:

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Step-by-step explanation:

Original mean weight= 50

now, it became= 48

the original no. of ppl considered earlier= 10

now= 8

sum of weight of class(now)= 48*8= 384

sum of weight of class earlier = 50*10=500

two students weight was subtracted

therefore, mean weight of 2 students = 500-384 = 116/2 = 58