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: a man walking at a rate of 15 km / hr crosses a bridge in 20 minutes . the length of the bridge is ? 
Options: a ) 1250 m , b ) 1110 m , c ) 950 m , d ) 1000 m , e ) 1300 m
[EX A]: d

[EX Q]: Problem: at what rate of compound interest per annum will a sum of rs . 1200 become rs . 1348.32 in 2 years 
Options: a ) 3 % , b ) 4 % , c ) 5 % , d ) 6 % , e ) 7 %
[EX A]: d

[EX Q]: Problem: a side of beef lost 35 percent of its weight in processing . if the side of beef weighed 580 pounds after processing , how many pounds did it weigh before processing ? 
Options: a ) 191 , b ) 355 , c ) 737 , d ) 892 , e ) 1,560
[EX A]:
d