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: each child has 2 pencils and 13 skittles . if there are 15 children , how many pencils are there in total ?
Options: a ) 30 , b ) 12 , c ) 18 , d ) 22 , e ) 08
[A]: a

[Q]: Problem: of the goose eggs laid at a certain pond , 2 / 3 hatched and 3 / 4 of the geese that hatched from those eggs survived the first month . of the geese that survived the first month , 3 / 5 did not survive the first year . if 125 geese survived the first year and if no more than one goose hatched from each egg , how many goose eggs were laid at the pond ?
Options: a ) 280 , b ) 400 , c ) 540 , d ) 625 , e ) 840
[A]: d

[Q]: Problem: the average age of applicants for a new job is 31 , with a standard deviation of 5 . the hiring manager is only willing to accept applications whose age is within one standard deviation of the average age . what is the maximum number of different ages of the applicants ?
Options: a ) 11 , b ) 14 , c ) 15 , d ) 18 , e ) 30
[A]:
a