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: A student missed 6% of the questions on a test. If the student missed 12 questions, how many questions were on the test?

 Option A: 100

 Option B: 150

 Option C: 200

 Option D: 250

 Option E: 300
[A]: Option C


[Q]: Question: The average age of 31 students in a group is 16 years. when teacher's age is included to it, the average increases by one.What is the teacher's age in years?

 Option A: 31

 Option B: 36

 Option C: 48

 Option D: 45

 Option E: 57
[A]: Option C


[Q]: Question: 32 meters of wire is available to fence off a flower bed in the form of a circular sector. What must the radius of the circle in meters be, if we wish to have a flower bed with the greatest possible surface area?

 Option A: 2√2

 Option B: 2√5

 Option C: 5

 Option D: 4√2

 Option E: 8
[A]:
Option E