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: Mr. Kramer, the losing candidate in a two-candidate election, received 942,568 votes, which was exactly 35 percent of all votes cast. Approximately what percent of the remaining votes would he need to have received in order to have won at least 50 percent of all the votes cast?

Option A: 10%

Option B: 12%

Option C: 15%

Option D: 17%

Option E: 23%

Answer: Option E

Question: Question: How many pieces of 0.85 metres can be cut from a rod 42.5 metres long?

Option A: 30

Option B: 40

Option C: 50

Option D: 60

Option E: 70

Answer: Option C

Question: Question: Boy sells a book for Rs. 450 he gets a loss of 10%, find CP of the book?

Option A: Rs.400

Option B: Rs.450

Option C: Rs.500

Option D: Rs.550

Option E: Rs.600

Answer:
Option C