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: what is 2 3 / 4 - 1 2 / 5 divided by 2 / 3 - 1 / 3 ? 
Options: a ) 17 / 36 , b ) 36 / 17 , c ) 7 / 6 , d ) 27 / 20 , e ) 51 / 44
answer:
d


question:
Problem: what is the least number should be added to 1100 , so the sum of the number is completely divisible by 23 ? 
Options: a ) 1 , b ) 2 , c ) 5 , d ) 4 , e ) 8
answer:
d


question:
Problem: the ratio of ducks and frogs in a pond is 37 : 39 respectively . the average number of ducks and frogs in the pond is 150 . what is the number of frogs in the pond ? 
Options: a ) 148 , b ) 154 , c ) 156 , d ) 144 , e ) none
answer:

b