# The mean (average

Given: Mean of three students = 40 kg

The three students are Ranga, Rahim and Reshma, where

Ranga’s weight = 46 kg

Let Rahim’s weight = x

And Reshma’s weight = y [ Rahim’s weight = Reshma’s weight, according to the question]

Mean is given by

[ Mean = 40]

120 = 46 + 2x

2x = 120 – 46 = 74

x = 74/2

x = 37

Thus, Rahim’s weight = 37 kg

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