TASK DEFINITION: In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
PROBLEM: Problem: 40 is subtracted from 70 % of a number , the result is 30 . find the number ? 
Options: a ) 150 , b ) 997 , c ) 266 , d ) 288 , e ) 100

SOLUTION: e

PROBLEM: Problem: two numbers are respectively 50 % and 100 % more than a third number . the percentage that is first of the second is ? 
Options: a ) 65 % , b ) 83 % , c ) 27 % , d ) 42 % , e ) 75 %

SOLUTION: e

PROBLEM: Problem: if 125 % of j is equal to 25 % of k , 150 % of k is equal to 50 % of l , and 175 % of l is equal to 75 % of m , then 20 % of m is equal to what percent of 200 % of j ? 
Options: a ) 0.35 , b ) 3.5 , c ) 35 , d ) 350 , e ) 3500

SOLUTION:
d