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: the population of a town increases 22 % and 25 % respectively in two consecutive years . after the growth the present population of the town is 1220 . then what is the population of the town 2 years ago ? 
Options: a ) a ) 600 , b ) b ) 700 , c ) c ) 800 , d ) d ) 900 , e ) e ) 1000
c

Problem: the cost price of a radio is rs . 4800 and it was sold for rs . 4400 , find the loss % ? 
Options: a ) 8 , b ) 9 , c ) 7 , d ) 6 , e ) 4
a

Problem: a technician makes a round - trip to and from a certain service center by the same route . if the technician completes the drive to the center and then completes 20 percent of the drive from the center , what percent of the round - trip has the technician completed ? 
Options: a ) 60 , b ) 50 , c ) 40 , d ) 70 , e ) 45

a