In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
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Question: Problem: 123 : 36 : : 221 : ? 
Options: a ) 52 , b ) 69 , c ) 72 , d ) 25 , e ) 32

Answer: d


Question: Problem: what is the least number should be added to 1100 , so the sum of the number is completely divisible by 23 ? 
Options: a ) 1 , b ) 2 , c ) 5 , d ) 4 , e ) 8

Answer: d


Question: Problem: if the radius of a cylinder is doubled and height 5 times , what is the new volume of the cylinder divided by the old one ? 
Options: a ) 8 . , b ) 2 . , c ) 6 . , d ) 20 . , e ) 10 .

Answer:
d