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: A survey is conducted on 800 people from a city. It is found that 6 1% of people surveyed speakHindi, 54.5% people speak Bangla and 37.5% of them speak English. 16.5% people can speak only Hindi and Bangla, 14.5% people can speak only Hindi and English and 6% people can speak only Bangla and English. Answer the following questions based on this information.
How many people are there who can speak only Hindi ?

Option A: 172

Option B: 174

Option C: 176

Option D: 178

Option E: 179

Answer: Option C

Question: Question: An article is bought for Rs.675 and sold for Rs.1215, find the gain percent?

Option A: 33 1/9%

Option B: 33 8/3%

Option C: 33 1/3%

Option D: 33 2/3%

Option E: 80%

Answer: Option E

Question: Question: What is the measure of the radius of the circle inscribed in a triangle whose sides measure 8, 15 and 27 units?

Option A: 8.5 units

Option B: 6 units

Option C: 3 units

Option D: 5 units

Option E: 2 units

Answer:
Option E