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: a , b and c started a business with capitals of rs . 8000 , rs . 10000 and rs . 12000 respectively . at the end of the year , the profit share of b is rs . 1700 . the difference between the profit shares of a and c is ?
Options: a ) 288 , b ) 266 , c ) 155 , d ) 680 , e ) 441
d

Problem: what annual installment will discharge a debt of rs . 1428 due in 3 years at 12 % simple interest ?
Options: a ) 315 , b ) 345 , c ) 425 , d ) 335 , e ) none of them
c

Problem: a retailer bought a machine at a wholesale price of $ 90 and later on sold it after a 10 % discount of the retail price . if the retailer made a profit equivalent to 20 % of the whole price , what is the retail price e of the machine ?
Options: a ) 81 , b ) 100 , c ) 120 , d ) 135 , e ) 160
c