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An inquiry into 100 candidates who faile...

An inquiry into 100 candidates who failed in English of H.S. Examination revealed the following data : failed in Aggregate-66, failed in Paper I-37, failed Paper II-59, failed in Aggregate and Paper I-17, failed in Aggregate and Paper II-43 and failed in both papers-13.
Find the number of candidates who failed in
(i) Aggregate or Paper II but not in Paper I
(ii) Aggregate but not in Paper I and Paper II.

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The correct Answer is:
(i) 63 (ii) 17
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