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: the total marks obtained by a student in mathematics and physics is 50 and his score in chemistry is 20 marks more than that in physics. find the average marks scored in mathamatics and chemistry together.
Options: a. 15, b. 25, c. 35, d. 45, e. 55

A: c
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Q: Problem: a no. when divided by 221 gives a remainder 43, what remainder will beobtained by dividingthe same no. 17 ?
Options: a. 3, b. 6, c. 9, d. 10, e. 12

A: c
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Q: Problem: the local recycling plant had a contract requiring anyone who obtained recycled bottles for storage for them, to bring them back to be recycled again. the plant could make one new bottle from every 7 bottles returned. one week, on monday, they got 343 bottles to recycle. assuming that everybody brought back all the empties, how many could they eventually remake from the 343 ?
Options: a. 53, b. 54, c. 55, d. 56, e. 57

A:
e
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