instruction:
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'.
question:
Problem: the average of 10 consecutive odd numbers is 22 . what is the sum of the first 3 numbers ? 
Options: a ) 13 , b ) 45 , c ) 17 , d ) 220 , e ) 90
answer:
b


question:
Problem: if ( 1 – 1.5 ) n = 1 , then n = 
Options: a ) − 400 , b ) − 140 , c ) − 2 , d ) 4 , e ) 400
answer:
c


question:
Problem: if 50 % of ( x - y ) = 30 % of ( x + y ) then what percent of x is y ? 
Options: a ) 2.5 % , b ) 10 % , c ) 5 % , d ) 15 % , e ) 25 %
answer:

e