In this task, you need to provide the correct option for a given problem from the provided options.
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Question: Problem: in a class , 30 students pass in english and 20 students in math , while some students among these pass in both . how many more students do only english as compared to those doing only maths ? 
Options: a ) 10 , b ) 15 , c ) 20 , d ) 25 , e ) indeterminate

Answer: a


Question: Problem: out of 250 students of a college , 160 play football , 90 play cricket and 50 neither play football nor cricket . how many students play both football and cricket ? 
Options: a ) 30 , b ) 40 , c ) 50 , d ) 60 , e ) 70

Answer: c


Question: Problem: in a college the ratio of the numbers of boys to the girls is 8 : 5 . if there are 190 girls , the total number of students in the college is ? 
Options: a ) 562 , b ) 356 , c ) 452 , d ) 494 , e ) 512

Answer:
d