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'.

[EX Q]: Problem: two tests had the same maximum mark . the pass percentages in the first and the second test were 40 % and 45 % respectively . a candidate scored 216 marks in the second test and failed by 75 marks in that test . find the pass mark in the first test ?
Options: a ) 768 , b ) 243 , c ) 246 , d ) 288 , e ) 224
[EX A]: d

[EX Q]: Problem: if 40 % of a certain number is 160 , then what is 30 % of that number ?
Options: a ) 270 , b ) 380 , c ) 120 , d ) 360 , e ) 180
[EX A]: c

[EX Q]: Problem: in an election a candidate who gets 60 % of the votes is elected by a majority of 900 votes . what is the total number of votes polled ?
Options: a ) a ) 4500 , b ) b ) 5200 , c ) c ) 6900 , d ) d ) 7520 , e ) e ) 6000
[EX A]:
a