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: find the simple interest on rs . 520 for 7 months at 8 paisa per month ? 
Options: a ) 277 , b ) 270 , c ) 291 , d ) 266 , e ) 121

Answer: c


Question: Problem: a man ' s speed with the current is 12 km / hr and the speed of the current is 2 km / hr . the man ' s speed against the current is 
Options: a ) 8 , b ) 10 , c ) 11 , d ) 12 , e ) 13

Answer: a


Question: Problem: the cost price of 40 articles is the same as the selling price of x articles . if the profit is 25 % , what is x ? 
Options: a ) 26 , b ) 28 , c ) 30 , d ) 32 , e ) 34

Answer:
d