Use reasoning to answer the following question.
John has a donkey and an elephant. The elephant weighs 3 tons (a ton is 2000 pounds). The donkey weighs 90% less. What is their combined weight in pounds?

6600
The elephant weighs 3 * 2000 = 6000 pounds.

The donkey weighs 6000 *.

9 = 5400 pounds less.

So the donkey weighs 6000 - 5400 = 600 pounds.

That means the combined weight is 600 + 6000 = 6600 pounds.

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The final answer: 6600