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'.

[EX Q]: Problem: an article is bought for rs . 560 and sold for rs . 340 , find the loss percent ?
Options: a ) 36 % , b ) 38 % , c ) 16 % , d ) 39 % , e ) 12 %
[EX A]: d

[EX Q]: Problem: machine p and machine q are each used to manufacture 440 sprockets . it takes machine p 10 hours longer to produce 440 sprockets than machine q . machine q produces 10 % more sprockets per hour than machine a . how many sprockets per hour does machine a produce ?
Options: a ) 2 , b ) 4 , c ) 6 , d ) 8 , e ) 10
[EX A]: b

[EX Q]: Problem: a man walking at a rate of 10 km / hr crosses a bridge in 15 minutes . the length of the bridge is ?
Options: a ) 1521 , b ) 1492 , c ) 1667 , d ) 2500 , e ) 1112
[EX A]:
d