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.
--------
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: Find the odd one out:
125, 106, 85, 76, 65, 58, 53

 Option A: 33

 Option B: 85

 Option C: 26

 Option D: 18

 Option E: 222

Answer: Option B


Question: Question: If the equation x^2−4x=k has at least one solution, which of the following must be true?

 Option A: k ≥−4

 Option B: k < −9

 Option C: k = 9

 Option D: k ≤ 9

 Option E: k ≥ −9

Answer:
Option A