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'.

[EX Q]: Problem: 1 , 3,5 , 7,9 , . . 50 find term of sequnce for this . 
Options: a ) 1356 , b ) 1557 , c ) 1688 , d ) 1700 , e ) 2500
[EX A]: e

[EX Q]: Problem: in a race where 8 cars are running , the chance that car x will win is 1 / 2 , that y will win is 1 / 4 and that z will win is 1 / 3 . assuming that a dead heat is impossible , find the chance that one of them will win . 
Options: a ) 1 / 140 , b ) 11 / 12 , c ) 14 / 8 , d ) 13 / 12 , e ) 57 / 120
[EX A]: d

[EX Q]: Problem: y and z are in a relay race . y runs the first leg of the course in 58 seconds . z runs the second leg of the course in 26 seconds . what was the average time they took to run a leg of the course ? 
Options: a ) 39 , b ) 40 , c ) 41 , d ) 42 , e ) 43
[EX A]:
d