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: you hold some gold in a vault as an investment . over the past year the price of gold increases by 60 % . in order to keep your gold in the vault , you must pay 10 % of the total value of the gold per year . what percentage has the value of your holdings changed by over the past year . 
Options: a ) 45 % , b ) 46 % , c ) 50 % , d ) 55 % , e ) 44 %
e

Problem: a person buys an article at rs . 400 . at what price should he sell the article so as to make a profit of 40 % ? 
Options: a ) 600 , b ) 277 , c ) 560 , d ) 261 , e ) 281
c

Problem: tom opened a shop investing rs . 3000 . jose joined him 2 months later , investing rs . 4000 . they earned a profit of rs . 4230 after completion of one year . what will be jose ' s share of profit ? 
Options: a ) 2000 , b ) 2200 , c ) 2309 , d ) 2350 , e ) 3250

d