Q. 94.7( 34 Votes )

The mean (average

Answer :

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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