Read the given information carefully and answer the following questions. Following paragraph shows the information about four students (A,B, C and D) ...

Read the given information carefully and answer the following questions.
Following paragraph shows the information about four students (A,B, C and D) who have attempted
English exams. There are two types of questions i.e. Shorts questions and Long questions.

Short questions section:

I. Each question is of 5 marks.

II. Candidates have to attempt at least 6 out of every 7 questions.

Long questions section:

I. Each question is of 10 marks.

II. Candidates have to attempt at least 7 out of every 9 questions

Note: 0.5 marks will be deducted for each spelling error and 0.75 marks will be deducted if he forgot to
write a whole word.
In this exam, there are total 42 short and 18 long questions. B corrects 14 long questions and obtained
131 marks whereas he obtained 175 marks in short section. Total marks obtained by A in short questions
is 160 by attempting 38 questions. C attempted all the short questions and corrects as twice as number of
questions correct in long section and got 150.5 marks in the long questions. D answered correctly 15 long
questions and ratio of spelling errors in long to short section is 3:4.

If A made 25% more spelling mistakes in the long section than in the short section, answered 16 long questions correctly, and scored 135 marks in the long section, then how many questions did A answer incorrectly in the short section?