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 whose fifth part increased by 7 is equal to its fourth part diminished by 7 is ? 
Options: a ) 160 , b ) 180 , c ) 200 , d ) 280 , e ) none
[A]: d


[Q]: Problem: when 52416 is divided by 312 , the quotient is 168 . what will be the quotient when 52.416 is divided by 0.68 ? 
Options: a ) 5 , b ) 6 , c ) 4 , d ) 3 , e ) 8
[A]: d


[Q]: Problem: if [ x ] is the greatest integer less than or equal to x , what is the value of [ - 2.6 ] + [ 1.4 ] + [ 2.7 ] ? 
Options: a ) 0 , b ) 1 , c ) 2 , d ) 6 , e ) 7
[A]:
a