In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: a number is doubled and 6 is added . if resultant is trebled , it becomes 72 . what is that number 
Options: a ) 8 , b ) 10 , c ) 9 , d ) 14 , e ) 16
[A]: c


[Q]: Problem: a group of n students can be divided into equal groups of 3 with 1 student left over or equal groups of 6 with 1 students left over . what is the sum of the two smallest possible values of n ? 
Options: a ) 33 , b ) 46 , c ) 49 , d ) 53 , e ) 86
[A]: e


[Q]: Problem: in a maths test , students were asked to find 5 / 16 of a certain number . one of the students by mistake found 5 / 6 th of that number and his answer was 50 more than the correct answer . find the number . 
Options: a ) 96 , b ) 280 , c ) 384 , d ) 400 , e ) 500
[A]:
a