Question 1048425
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Hi 
 B/C = 6/5
5B = 6C
C = (5/6)B

Let x represent the constant of proportionality
{{{6x + 4x + (5/6)4x = 160kg}}}
6x + 4x + (10/3)x = 160kg
18x + 12x + 10x = 480
40x = 480
x = 12kg 
A: 72kg {{{6*12kg}}}
B: 48kg {{{4*12kg}}}
C: 40kg {{{(5/6)48}}}
AND
sum = 160kg CHECKS!