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: a large field of 900 hectares is divided into two parts . the difference of the areas of the two parts is one - fifth of the average of the two areas . what is the area of the smaller part in hectares ? 
Options: a ) 435 hectares . , b ) 425 hectares . , c ) 445 hectares . , d ) 415 hectares . , e ) 405 hectares .
[A]: e


[Q]: Problem: find the least number of 5 digits which is exactly divisible by 12 , 15 and 18 ? 
Options: a ) 1080 , b ) 10080 , c ) 10025 , d ) 11080 , e ) 12080
[A]: b


[Q]: Problem: a grocer is storing soap boxes in cartons that measure 25 inches by 42 inches by 60 inches . if the measurement of each soap box is 7 inches by 6 inches by 5 inches , then what is the maximum number of soap boxes that can be placed in each carton ? 
Options: a ) 210 , b ) 252 , c ) 280 , d ) 300 , e ) 420
[A]:
d