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'.
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Question: Problem: if 40 % of a number is greater than 80 % of 5 by 2 , what is the number ? 
Options: a ) 3 , b ) 15 , c ) 20 , d ) 2 , e ) 5

Answer: b


Question: Problem: what sum of money will produce rs . 70 as simple interest in 4 years at 4 1 / 2 percent ? 
Options: a ) 263 , b ) 500 , c ) 388.9 , d ) 368 , e ) 339

Answer: c


Question: Problem: the simple interest and the true discount on a certain sum for a given time and at a given rate are rs . 85 and rs . 80 respectively . the sum is : 
Options: a ) rs . 1800 , b ) rs . 1450 , c ) rs . 1360 , d ) rs . 6800 , e ) none

Answer:
c