Verified Answer :

texaschic101

5 : 7.....add them = 12

5/12 60 = 300/12 = 25 kg
7/12 60 = 420/12 = 35 kg

dalendrk

60kg = 5x + 7x

12x = 60kg    |divide both sides by 12

x = 5kg

5:7 ⇒ 5x:7x ⇒ (5·5) : (7·5) ⇒ 25 : 35

Answer: 25kg and 35kg.

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