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.

Q: Problem: bruce and anne can clean their house in 4 hours working together at their respective constant rates. if anne ’ s speed were doubled, they could clean their house in 3 hours working at their respective rates. how many w hours does it currently take anne to clean the house on her own ?
Options: a. 6, b. 7, c. 8, d. 12, e. 14

A: d
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Q: Problem: at 15: 00 there were 22 students in the computer lab. at 15: 03 and every three minutes after that, 3 students entered the lab. if at 15: 10 and every ten minutes after that 8 students left the lab, how many students were in the computer lab at 15: 44 ?
Options: a. 7, b. 14, c. 25, d. 27, e. 32

A: e
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Q: Problem: in a hostel, the number of students decreased by 12 % and the price of food increased by 20 % over the previous year. if each student consumes the same amount of food then by how much should the consumption of food be cut short by every student, so that the total cost of the food remains the same as that of the previous year ?
Options: a. 19 %, b. 15 %, c. 25 %, d. 40 %, e. 5.3 %

A:
e
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