In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
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Question: Problem: the ratio , by volume , of soap to alcohol to water in a certain solution is 4 : 20 : 60 . the solution will be altered so that the ratio of soap to alcohol is doubled while the ratio of soap to water is halved . if the altered solution will contain 100 cubic centimeters of alcohol , how many cubic centimeters of water will it contain ? 
Options: a ) 1200 , b ) 1250 , c ) 1300 , d ) 1400 , e ) 1450

Answer: a


Question: Problem: if circles x and y have the same area and circle x has a circumference of 14 π , half of the radius of circle y is : 
Options: ['a ) 16', 'b ) 8', 'c ) 4', 'd ) 3.5', 'e ) 1']

Answer: d


Question: Problem: the area of a circular field is 13.86 hectares . find the cost of fencing it at the rate of rs . 4.70 per metre . 
Options: a ) 2399 , b ) 6204 , c ) 2999 , d ) 5808 , e ) 2888

Answer:
b