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'.

Input: Consider Input: Problem: running at the same constant rate , 6 identical machines can produce a total of 270 bottles per minute . at this rate , how many bottles could 8 such machines produce in 4 minutes ? 
Options: a ) 648 , b ) 1800 , c ) 2700 , d ) 1440 , e ) none of these

Output: d


Input: Consider Input: Problem: a man buys a cycle for rs . 1750 and sells it at a loss of 8 % . what is the selling price of the cycle ? 
Options: a ) s . 1090 , b ) s . 1610 , c ) s . 1190 , d ) s . 1202 , e ) s . 1092

Output: b


Input: Consider Input: Problem: milk contains 5 % water . what quantity of pure milk should be added to 10 litres of milk to reduce this 2 % ? 
Options: a ) 15 litres , b ) 16 litres , c ) 17 litres , d ) 25 litres , e ) 35 litres


Output: a