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

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 ?
22

Problem: in a class of 32 students , 2 students did not borrow any books from the library , 12 students each borrowed 1 book , 10 students each borrowed 2 books , and the rest borrowed at least 3 books . if the average number of books per student was 2 , what is the maximum number of books any single student could have borrowed ?
11

Problem: a train which has 410 m long , is running 45 kmph . in what time will it cross a person moving at 9 kmph in same direction ?

41 sec