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: total 85 matches are conducted in knockout match type . how many players will be participated in that tournament ?
Options: a ) 85 , b ) 81 , c ) 53 , d ) 82 , e ) 84

Answer: e

Question: Problem: if ( a - b - c + d = 13 ) and ( a + b - c - d = 9 ) , what is the value of ( b - d ) ^ 2 ?
Options: a ) 4 . , b ) 8 . , c ) 12 . , d ) 16 . , e ) 64 .

Answer: a

Question: Problem: a train starts full of passengers . at the first station , it drops one - third of the passengers and takes 280 more . at the second station , it drops one - half of the new total and takes 12 more . on arriving at the third station , it is found to have 248 passengers . find the number of passengers in the beginning .
Options: a ) 240 , b ) 248 , c ) 280 , d ) 288 , e ) 290

Answer:
d