Question
The total mass of a dog, a cat and a rabbit is 7.8 kg. The cat is 0.2 kg heavier than the dog. The rabbit is 2 times as heavy as the cat. Find the mass of the rabbit.
4 m

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The total mass of a dog, a cat and a rabbit is 7.8 kg. The cat is 0.2 kg heavier than the dog. The rabbit is 2 times as heavy as the cat. Find the mass of the rabbit.