instruction:
Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.
question:
Problem: a ( 3, w ^ 3 ) is the ( x, y ) coordinate of point located on the parabola y = x ^ 2 - 1. what is the value of w ?
Options: a. 2., b. 4., c. 5., d. 6., e. 9.
answer:
a


question:
Problem: a shopkeeper sells 500 metres of cloth for rs. 18000 at a loss of rs. 5 per metre. find his cost price for one metre of cloth ?
Options: a. 12, b. 27, c. 29, d. 50, e. 41
answer:
e


question:
Problem: a customer went to a shop and paid a total of $ 30, out of which 90 cents was for sales tax on taxable purchases. if the tax rate was 6 %, then what was the cost of the tax free items ?
Options: a. $ 12.70, b. $ 13.20, c. $ 14.10, d. $ 15.60, e. $ 16.80
answer:

c