1.

if cat+rabbit weights 10 kg, dog +rabbit weights 20 kg and dog +cat weights 24 kg what will be the combined weight of dao+cat+rabbit

Answer» LET weight of cat be=x
 weight of rabbit= y
  weight of dog = z
ATQ
x+y=10
z+y=20
z+x=24
add all equation
2(x+y+z)=54
x+y+z=27
combined weight of dog +cat+rabbit will be 27 kg



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