Answer:
Each sibling have [tex]299[/tex] grams of grapes.
Step-by-step explanation:
Total quantity [tex]=1\ kg=1000\ grams[/tex]
Kari gets [tex]763\ grams[/tex]
Kari shares [tex]598[/tex] grams to twin brothers.
That means twin brothers have quantity [tex]=598\ grams[/tex]
let each of them have [tex]x[/tex] grams
[tex]x+x=598\\\\2x=598\\\\x=\frac{598}{2}\\\\x=299\ grams[/tex]
each sibling have [tex]299\ grams[/tex] of grapes.