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20 and 1

Seems to be a common problem. Add the sum to the difference and divide by 2 gives one number. Then start over and subtract the smaller of the two givens from the larger and then divide by 2 to get the other number. So here you have (21+19)/2 and (21-19)/2

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13y ago
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Anonymous

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3y ago

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Q: The sum of two numbers is 21 The difference of the two numbers is 19 What are the two numbers?
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