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: running at the same rate , 8 identical machines can produce 560 paperclips a minute . at this rate , how many paperclips could 18 machines produce in 6 minutes ? 
Options: a ) 1344 , b ) 3360 , c ) 7560 , d ) 50400 , e ) 67200

A: c
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Q: Problem: the profit earned by selling an article for rs . 832 is equal to the loss incurred when the same article is sold for rs . 448 . what should be the sale price for making 80 % profit ? 
Options: a ) 1152 , b ) 230 , c ) 960 , d ) 780 , e ) 400

A: a
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Q: Problem: an article is bought for rs . 675 and sold for rs . 800 , find the gain percent ? 
Options: a ) 38 % , b ) 28 % , c ) 18 % , d ) 22 % , e ) 13 %

A:
c
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