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: if 5 a = 3125, then the value of 5 ( a - 3 ) is :
Options: a. 25, b. 125, c. 625, d. 1625, e. none of these
answer:
a


question:
Problem: if an investor puts $ 700 in a savings account that earns 10 percent annual interest compounded semiannually, how much money will be in the account after one year ?
Options: a. $ 769.75, b. $ 771.75, c. $ 773.75, d. $ 775.75, e. $ 777.75
answer:
b


question:
Problem: the average age of 28 students in a group is 12 years. when teacher â € ™ s age is included to it, the average increases by one. what is the teacher â € ™ s age in years ?
Options: a. 31, b. 36, c. 41, d. 51, e. none
answer:

c