In this task, you need to provide the correct option for a given problem from the provided options.

[EX Q]: Problem: in a class of 40 students 26 play football and play 20 long tennis , if 17 play above , many play neither ? 
Options: a ) 6 , b ) 8 , c ) 10 , d ) 11 , e ) 14
[EX A]: d

[EX Q]: Problem: sandy is younger than molly by 6 years . if their ages are in the respective ratio of 7 : 9 , how old is molly ? 
Options: a ) 21 , b ) 24 , c ) 27 , d ) 36 , e ) 45
[EX A]: c

[EX Q]: Problem: three numbers are in the ratio 3 : 4 : 5 and their l . c . m . is 600 . their h . c . f is ? 
Options: a ) 10 , b ) 30 , c ) 40 , d ) 50 , e ) 60
[EX A]:
a