instruction:
In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
question:
Problem: a man started driving at a constant speed , from the site of a blast , the moment he heard the blast . he heard a second blast after a time of 30 mins and 25 seconds . if the second blast occurred exactly 30 mins after the first , how many meters was he from the site when he heard the second blast ? ( speed of sound = 330 m / s ) 
Options: a ) 8250 , b ) 9350 , c ) 10,450 , d ) 11,550 , e ) 12,650
answer:
a


question:
Problem: if 22 men do a work in 55 days , in how many days will 10 men do it ? 
Options: a ) 121 , b ) 123 , c ) 119 , d ) 125 , e ) 127
answer:
a


question:
Problem: machine z takes 2 more hours than machine b to make 20 widgets . if working together , the machines can make 25 widgets in 3 hours , how long will it take machine z to make 40 widgets ? 
Options: a ) 5 , b ) 6 , c ) 8 , d ) 10 , e ) 12
answer:

e