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: a soccer store typically sells replica jerseys at a discount of 30 percent to 50 percent off list price . during the annual summer sale , everything in the store is an additional 20 percent off the original list price . if a replica jersey ' s list price is $ 80 , approximately what percent e of the list price is the lowest possible sale price ? 
Options: a ) 20 , b ) 25 , c ) 30 , d ) 40 , e ) 50
answer:
d


question:
Problem: the average of the marks of 30 students in a class is 45 . if the marks of each student are doubled , find the new average ? 
Options: a ) 85 , b ) 77 , c ) 33 , d ) 90 , e ) 75
answer:
d


question:
Problem: if the average ( arithmetic mean ) of a and b is 215 , and the average of b and c is 160 , what is the value of a − c ? 
Options: a ) − 220 , b ) − 100 , c ) 100 , d ) 110 , e ) it can not be determined from the information given
answer:

d