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 15 % of 40 is greater than 25 % of a number by 2 , the number is
Options: a ) 14 , b ) 16 , c ) 18 , d ) 20 , e ) 22

Answer: b

Question: Problem: a man can row his boat with the stream at 6 km / h and against the stream in 3 km / h . the man ' s rate is ?
Options: a ) 1.5 kmph , b ) 3 kmph , c ) 8 kmph , d ) 7 kmph , e ) 5 kmph

Answer: a

Question: Problem: a watch was sold at a loss of 5 % . if it was sold for rs . 500 more , there would have been a gain of 5 % . what is the cost price ?
Options: a ) 1000 , b ) 2998 , c ) 2778 , d ) 2788 , e ) 2991

Answer:
d