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: what is the value of 8 1 / 3 % of 600 + 37 of 400
Options: a ) 100 , b ) 300 , c ) 150 , d ) 200 , e ) 250
[A]: d

[Q]: Problem: village p ' s population is 1200 greater than village q ' s population . if village q ' s population were reduced by 800 people , then village p ' s population would be 6 times as large as village q ' s population . what is village q ' s current population ?
Options: a ) 1050 , b ) 1100 , c ) 1150 , d ) 1200 , e ) 1250
[A]: d

[Q]: Problem: if the price of petrol increases by 30 , by how much must a user cut down his consumption so that his expenditure on petrol remains constant ?
Options: a ) 25 % , b ) 23 % , c ) 16.67 % , d ) 33.33 % , e ) none of these
[A]:
b