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'.

Q: Problem: radha bought a watch for rs . 144 and got a percentage of profit equal to the cost price of the watch . what is the cost price of the watch ? 
Options: a ) rs . 72 , b ) rs . 78 , c ) rs . 80 , d ) rs . 90 , e ) rs . 92

A: d
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Q: Problem: the sale price sarees listed for rs . 400 after successive discount is 30 % and 20 % is ? 
Options: a ) 297 , b ) 879 , c ) 342 , d ) 762 , e ) 224

A: e
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Q: Problem: a man invested rs . 14,400 in rs . 100 shares of a company at 25 % premium . if the company declares 5 % dividend at the end of the year , then how much does he get ? 
Options: a ) rs . 576 , b ) rs . 600 , c ) rs . 650 , d ) rs . 720 , e ) none

A:
a
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