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'.

Example Input: Problem: the lcm of two numbers is 2310 and hcf is 83 . if one of the numbers is 210 . then what is the other number ?
Options: a ) 913 , b ) 825 , c ) 330 , d ) 582 , e ) 465
Example Output: a

Example Input: Problem: two friends deepak and rajeev have agreed to meet at a definite spot on a particular day between 9 pm and 10 pm . the first person to come waits for some time and leaves . if the other one does not turn up by that time . if deepak comes first , he waits for 45 minutes and if rajeev comes first , he waits for 15 minutes . what is the probability of meeting between deepak and rajeev if their arrival times are independent of eachother and each person arrives during the indicated period at random ?
Options: a ) 3 / 4 , b ) 11 / 16 , c ) 7 / 8 , d ) 3 / 16 , e ) 5 / 16
Example Output: d

Example Input: Problem: if 4 men can colour 48 m long cloth in 2 days , then 6 men can colour 72 m long cloth in
Options: a ) 1 day , b ) 2 days , c ) 3 days , d ) 4 days , e ) 5 days
Example Output:
b