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Mathematics, 15.02.2021 05:40 kleshead
22. A question bank has questions of Physics and
Chemistry. The number of questions of Chemistry
are 3.5 times the number of questions of Physics.
If there are 90 questions in the question bank, find the
number of questions of Physics and Chemistry in the
question bank.
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Answers: 3
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22. A question bank has questions of Physics and
Chemistry. The number of questions of Chemistry
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