Tag Archives: USA OMO

[Soln] Spring 2014 USA Online Math Open Qn 4

Spring 2014 USA OMO Qn 4.┬áThe integers are written in order on a long slip of paper. The slip is then cut into five pieces, so that each piece consists of some (nonempty) consecutive set of integers. The averages of … Continue reading

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Spring 2014 USA Online Math Open Qn 4

Spring 2014 USA OMO Qn 4.┬áThe integers are written in order on a long slip of paper. The slip is then cut into five pieces, so that each piece consists of some (nonempty) consecutive set of integers. The averages of … Continue reading

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[Soln] Fall 2014 USA Online Math Open Qn 13

Fall 2014 USA OMO Qn 13. Two ducks, Wat and Q, are taking a math test with 1022 other ducklings. The test has 30 questions, and the th question is worth points. The ducks work independently on the test. Wat … Continue reading

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[Hints] Fall 2014 USA Online Math Open Qn 13

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Fall 2014 USA Online Math Open Qn 13

Fall 2014 USA OMO Qn 13. Two ducks, Wat and Q, are taking a math test with 1022 other ducklings. The test has 30 questions, and the th question is worth points. The ducks work independently on the test. Wat … Continue reading

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[Soln] Fall 2014 USA Online Math Open Qn 10

Fall 2014 USA OMO Qn 10. Find the sum of the decimal digits of . Here is the greatest integer not exceeding .

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Fall 2014 USA Online Math Open Qn 10

Fall 2014 USA OMO Qn 10. Find the sum of the decimal digits of . Here is the greatest integer not exceeding .

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