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Jayant gets 3 marks for each right sum and loses 2 marks for each wrong sum He attempts 30 sums and obtains 40 marks The number of sums attempted correctly is?

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Anonymous

∙ 13y ago
Updated: 9/18/2023

3x + 2(30-x) = 40

3x + 60 - 2x = 40

x = -20

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∙ 13y ago
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