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.
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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: 1 men takes 37 $ to eat a pizza in restaurant such that it have discount multiple of 4 if u eat more pizza. discount increase by multiple of 4 every pizza u eat. for 1 pizza 0 % off. for 2 pizza % off for 3 pizza 8 % off. pizza without discount is 10 $. how much that man eats the pizza.
Options: a. 2, b. 3, c. 4, d. 5, e. 6

Answer: b


Question: Problem: john bought a shirt on sale for 25 % off the original price and another 25 % off the discounted price. if the final price was $ 17, what was the price before the first discount ?
Options: a. $ 45.10, b. $ 30.22, c. $ 28.44, d. $ 67.54, e. $ 65.23

Answer:
b