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: How much time will it take for an amount of Rs. 900 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

Option A: 2 years

Option B: 3 years

Option C: 1 year

Option D: 4 years

Option E: 5 years

Answer: Option A

Question: Question: A man performs 3/5 of the total journey by rail, 17/20 by bus and the remaining 6.5 km on foot. His total journey is :

Option A: 125 km

Option B: 130 km

Option C: 135 km

Option D: 140 km

Option E: None

Answer: Option B

Question: Question: If a rectangular billboard has an area of 130 square feet and a perimeter of 46 feet, what is the length of each of the longer sides?

Option A: 4

Option B: 7

Option C: 8

Option D: 13

Option E: 26

Answer:
Option D