TASK DEFINITION: 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'.
PROBLEM: Problem: a certain manufacturer produces items for which the production costs consist of annual fixed costs totaling $ 130,000 and variables costs averaging $ 5 per item . if the manufacturer ’ s selling price per item is $ 15 , how many items the manufacturer produce and sell to earn an annual profit of $ 150,000 ? 
Options: a ) 2,858 , b ) 18,667 , c ) 28,000 , d ) 35,000 , e ) 40,000

SOLUTION: c

PROBLEM: Problem: 123 : 36 : : 221 : ? 
Options: a ) 52 , b ) 69 , c ) 72 , d ) 25 , e ) 32

SOLUTION: d

PROBLEM: 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

SOLUTION:
b