instruction:
In this task, you need to provide the correct option for a given problem from the provided options.
question:
Problem: three numbers are in the ratio 3 : 4 : 5 and their l . c . m . is 6000 . their h . c . f is ?
Options: a ) 20 , b ) 30 , c ) 40 , d ) 50 , e ) 100
answer:
e

question:
Problem: how many days per calendar year is the month a factor of the day
Options: a ) 0 , b ) 1 , c ) 59 , d ) 90 , e ) 124
answer:
e

question:
Problem: 14 different biology books and 8 different chemistry books lie on a shelf . in how many ways can a student pick 2 books of each type ?
Options: a ) 80 , b ) 160 , c ) 720 , d ) 1100 , e ) 2548
answer:
e