The task is to generate the correct answer for a given math problem.

Q: Problem: if p / q = 3 / 11 , then 2 p + q = ?

A: 17
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Q: Problem: sandy gets 3 marks for each correct sum and loses 2 marks for each incorrect sum . sandy attempts 30 sums and obtains 50 marks . how many sums did sandy get correct ?

A: 22
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Q: Problem: in an examination , 35 % of total students failed in hindi , 45 % failed in english and 20 % in both . the percentage of these who passed in both the subjects is :

A:
40 %
****