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 sale price sarees listed for rs . 400 after successive discount is 30 % and 20 % is ? 
Options: a ) 297 , b ) 879 , c ) 342 , d ) 762 , e ) 224
e

Problem: last year a worker saved 15 % of her annual salary . this year , she made 20 % more money than last year and she saved 25 % of her salary . the amount she saved this year was what percent of the amount she saved last year ? 
Options: a ) 120 % , b ) 140 % , c ) 160 % , d ) 180 % , e ) 200 %
e

Problem: 150 is increased by 40 % . find the final number . 
Options: a ) 200 , b ) 210 , c ) 180 , d ) 190 , e ) 220

b