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'.

Q: Problem: ? x 24 = 173 x 240 
Options: a ) 545 , b ) 685 , c ) 865 , d ) 1730 , e ) 534

A: d
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Q: Problem: a certain lab experiments with white and brown mice only . in one experiment , 2 / 3 of the mice are white . if there are 11 brown mice in the experiment , how many mice in total are in the experiment ? 
Options: a ) 39 , b ) 33 , c ) 26 , d ) 21 , e ) 10

A: b
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Q: Problem: a student is ranked 17 th from right and 5 th from left . how many students are there in totality ? 
Options: a ) 18 , b ) 19 , c ) 20 , d ) 21 , e ) 22

A:
d
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