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: what number must be added to 6, 16 and 8 to get an average of 13 ?
Options: a. 23, b. 22, c. 44, d. 33, e. 55

Answer: b

Question: Problem: at the wholesale store you can buy an 8 - pack of hot dogs for $ 1.55, a 20 - pack for $ 3.05, and a 250 - pack for $ 22.95. what is the greatest number of hot dogs you can buy at this store with $ 205 ?
Options: a. 1,108, b. 2,100, c. 2,140, d. 2,124, e. 2,256

Answer: c

Question: Problem: there are 2 sections a and b in a class, consisting of 36 and 44 students respectively. if the average weight of section a is 40 kg and that of section b is 35 kg, find the average of the whole class ?
Options: a. 35.29 kg, b. 37.25 kg, c. 42.45 kg, d. 55.12 kg, e. 29.78 kg

Answer:
b