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Mathematics, 21.06.2019 16:40
The sum of two numbers is 86, and their difference is 20. find the two numbers
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Mathematics, 21.06.2019 20:00
Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?
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Mathematics, 21.06.2019 21:30
Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document
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Mathematics, 21.06.2019 22:30
The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.
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