Question

The mean weight of 3 students is 40.one of the student ranga weight is 48 kg and other two student rahim and reshma weights are equal find rahim weight

Answer 1

Answer:

36kg

Step-by-step explanation:

let rahim's and reshma's weight be x.

mean = sum/no. = (48+x+x)/3 = 40

48+2x = 120

2x=72

x=36

weight of rahim and reshma = 36kg

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Answer 2

Answer:

weight of Rahim is 36

Step-by-step explanation:

given weight of 3 students mean is 40

one of the member Ranga weight is 48

given that Rahim and Reshma weight is equal so let their weight be y

mean=sum of observation /no.of observation

40=48+y+y/3

40=48+2y/3

40×3=48+2y

120=48+2y

120-48=2y

72=2y

72/2=y

36=y

there for weight of Rahim is 36