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In Mr Tarkiainens each student chooses two of the topics listed in the chart above for their papers how many different pairs can Juiliana choose

In Mr Tarkiainens each student chooses two of the topics listed in the chart above for their papers how many different pairs can Juiliana choose
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In Mr Tarkiainens each student chooses two of the topics listed in the chart above for their papers how many different pairs can Juiliana choose

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User James Logan
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The answer is 90 different pairs.
So if there are 10 topics and each will get 9 pairings , so the over all pairs you will get is 90.
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User Rok Dolinar
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