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: find the principle on a certain sum of money at 5 % per annum for 4 years if the amount being rs . 1120 ? 
Options: a ) 933 , b ) 1067 , c ) 1977 , d ) 1056 , e ) 1097

SOLUTION: a

PROBLEM: Problem: what is 120 % of 13 / 24 of 840 ? 
Options: a ) 436 , b ) 478 , c ) 512 , d ) 546 , e ) 620

SOLUTION: d

PROBLEM: Problem: a light has a rating of 110 watts , it is replaced with a new light that has 30 % higher wattage . how many watts does the new light have ? 
Options: a ) 143 , b ) 145 , c ) 156 , d ) 134 , e ) 100

SOLUTION:
a