TASK DEFINITION: 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: Problem: i bought two books ; for rs . 600 . i sold one at a loss of 15 % and other at a gain of 19 % and then i found each book was sold at the same price . find the cost of the book sold at a loss ? 
Options: a ) 197 , b ) 280 , c ) 189 , d ) 278 , e ) 350

SOLUTION: e

PROBLEM: Problem: the difference between c . i . and s . i . on an amount of rs . 15,000 for 2 years is rs . 24 . what is the rate of interest per annum ? 
Options: a ) 8 , b ) 2 , c ) 9 , d ) 4 , e ) 6

SOLUTION: d

PROBLEM: Problem: john makes $ 60 a week from his job . he earns a raise andnow makes $ 70 a week . what is the % increase ? 
Options: a ) 16 % , b ) 16.66 % , c ) 17.8 % , d ) 18 % , e ) 19.5 %

SOLUTION:
b