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.
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Question: Question: The area of a parallelogram is 72sq m and its altitude is twice the corresponding base. Then the length of the base is?

 Option A: 6

 Option B: 9

 Option C: 7

 Option D: 62

 Option E: 2

Answer: Option A


Question: Question: Which of the following is greatest?

 Option A: 1/10

 Option B: 1/100

 Option C: 1/1000

 Option D: 1/10^9

 Option E: 1/5

Answer: Option E


Question: Question: Rohan ranked eleventh from the top and twenty-seventh from the bottom among the students who passed the annual examination in a class. If the number of students who failed in the examination was 12, how many students appeared for the examination?

 Option A: 48

 Option B: 49

 Option C: 50

 Option D: Cannot be determined

 Option E: None of these

Answer:
Option B