Two cats = 11kg = 11 000g
One cat is 1500g greater than the other, so we take away the difference first and then divide by 2 to get the weight of the lighter cat.
11 000 - 1500 = 9500
9500 ÷ 2 = 4750g
The lighter cat is 4750g
The heavier cat is 4750 + 1500 = 6250g
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Answer: The cats are 4750g and 6250g.
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