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 area of a circle is increased by 1500 % . by what percent has the radius of the circle increased ?
Options: a ) 100 % , b ) 200 % , c ) 300 % , d ) 600 % , e ) 800 %

Answer: c

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: a 16 % stock yielding 8 % is quoted at ?
Options: a ) 165 , b ) 170 , c ) 175 , d ) 180 , e ) 200

Answer:
e