instruction:
In this task, you need to provide the correct option for a given problem from the provided options.
question:
Problem: hree number are in the ratio of 3 : 4 : 5 and their l . c . m . is 2400 . their h . c . f . is : 
Options: a ) 40 , b ) 50 , c ) 60 , d ) 70 , e ) 80
answer:
a


question:
Problem: what is the units digit of 26 ! + 50 ! + 4 ! + 4 ! ? 
Options: a ) 8 , b ) 6 , c ) 4 , d ) 2 , e ) 0
answer:
a


question:
Problem: in a group of 70 people , 60 like swimming , 50 like wrestling . how many like both swimming and wrestling ? 
Options: a ) 30 , b ) 35 , c ) 40 , d ) 45 , e ) 50
answer:

c