# The mean weighth of A,BAND C is 50 kg .if the mean weigth of A and B is 40kg and B and C is 45 kg .find the weight of B

2
by zzuuzzuuz

2016-03-27T18:40:38+05:30
Using the given data,

a + b + c / 3 = 50
a + b + c = 150 -- Eq.1

a + b / 2 = 40
a + b = 80 -- Eq.2

b + c / 2 = 45
b + c = 90 -- Eq.3

Eq.1 - Eq.2
a + b + c - a - b = 150 - 80
c = 70

Eq.1 - Eq.3
a + b + c - b - c = 150 - 90
a = 60

Putting these values in Eq.1
a + b + c = 150
60 + b + 70 = 150
130 + b = 150
b = 150 - 130
b = 20 kg
i am sory what i have done soory
i am sory to cpy ur ans
Its 'not' okay
soory
plz plz plzzz
2016-03-27T18:45:46+05:30

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
A + b + c / 3 = 50 a + b + c = 150 -- Eq.1
a + b / 2 = 40 a + b = 80 -- Eq.2
b + c / 2 = 45b + c = 90 -- Eq.3
Eq.1 - Eq.2 a + b + c - a - b = 150 - 80c = 70
Eq.1 - Eq.3a + b + c - b - c = 150 - 90a = 60
Putting these values in Eq.1a + b + c = 15060 + b + 70 = 150130 + b = 150b = 150 - 130b = 20 kg
maaf kar do........................
sooooooooooooorrry for this frnds
i am sory what i have done soory
No need to regret, i have already reported many of your answers which are copied from internet
ples