TASK DEFINITION: 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: Problem: when average age of 22 members are 0 , how many members greater than 0 ? 
Options: a ) 17 , b ) 21 , c ) 22 , d ) 24 , e ) 25

SOLUTION: b

PROBLEM: Problem: a is the hundreds digit of the 3 digit integer x , b is the tens digit of x , and c is the units digit of x . 4 a = 2 b = c , and a > 0 . what is the difference between the two greatest possible values of x ? tip : dont stop till you have exhausted all answer choices to arrive at the correct one . 
Options: a ) 124 , b ) 297 , c ) 394 , d ) 421 , e ) 842

SOLUTION: a

PROBLEM: Problem: in an examination , 25 % of total students failed in hindi , 48 % failed in english and 27 % in both . the percentage of these who passed in both the subjects is : 
Options: a ) 23 , b ) 54 , c ) 28 , d ) 40 , e ) 81

SOLUTION:
b