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'.

Problem: roy is now 6 years older than julia and half of that amount older than kelly . if in 4 years , roy will be twice as old as julia , then in 4 years what would be roy ' s age multiplied by kelly ' s age ?
Options: a ) 72 , b ) 84 , c ) 90 , d ) 96 , e ) 108
e

Problem: what should be the least number to be added to the 3198 number to make it divisible by 8 ?
Options: a ) 12 , b ) 17 , c ) 2 , d ) 77 , e ) 26
c

Problem: a man ' s current age is ( 2 / 5 ) of the age of his father . after 8 years , he will be ( 1 / 2 ) of the age of his father . what is the age of father at now ?
Options: a ) 40 , b ) 45 , c ) 38 , d ) 50 , e ) 39
a