Hemavathi gets 3 marks for each right sum and loses 2 marks for each wrong sum. He attempts 35 sums and obtains 60 marks. The number of sums attempted correctly is ?

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Accepted Answer

Let, Hema attempted 'k' sum correctly, then k x 3 -2 x(35-k) = 60 5k = 130 k = 26 so 26 correct sums.

Hemavathi gets 3 marks for each right sum and loses 2 marks for each wrong sum. He attempts 35 sums and obtains 60 marks. The number of sums attempted correctly is ?

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