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: what is 120 % of 13 / 24 of 840 ? 
Options: a ) 436 , b ) 478 , c ) 512 , d ) 546 , e ) 620

A: d
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Q: Problem: a , b and c invested rs . 6300 , rs . 4200 and rs . 10500 respectively , in a partnership business . find the share of a in profit of rs . 12600 after a year ? 
Options: a ) 3630 , b ) 3637 , c ) 3630 , d ) 3631 , e ) 3780

A: e
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Q: Problem: a candidate got 30 % of the votes polled and he lost to his rival by 1760 votes . how many votes were cast ? 
Options: a ) 4000 , b ) 4100 , c ) 4200 , d ) 4300 , e ) 4400

A:
e
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