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: the difference between compound interest and simple interest on a certain amount of money at 5 % per annum for 2 years is 17 . find the sum :
Options: a ) 4500 , b ) 7500 , c ) 5000 , d ) 6800 , e ) none of these

Answer: d

Question: Problem: how is 4 % expressed as a decimal fraction ?
Options: a ) 0.4 , b ) 0.04 , c ) 0.004 , d ) 0.0004 , e ) 4

Answer: b

Question: Problem: the true discount on a bill due 9 months hence at 16 % per annum is rs . 210 . the amount of the bill is
Options: a ) 1200 , b ) 1960 , c ) 1600 , d ) 1354 , e ) none of these

Answer:
b