You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

Q: Question: What is the area of an equilateral triangle whose one side length is 80?

Option A: 8003

Option B: 10003

Option C: 12003

Option D: 14003

Option E: 16003

A: Option E
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Q: Question: The average marks of a class of 35 students is 45 and that of another class of 55 students is 65. Find the average marks of all the students?

Option A: 52.6

Option B: 52.4

Option C: 52.1

Option D: 57

Option E: 52.9

A: Option D
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Q: Question: A group of students was interviewed for that if it was asked whether or not they speak French and / or English. Among those who speak French, 30 speak English well, while 40 of them do not speak English. If 86% of students do not speak French, how many students were surveyed?

Option A: 500

Option B: 450

Option C: 250

Option D: 350

Option E: 525

A:
Option A
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