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 man ran 20 miles in 2 hours 2 minutes. What was the average speed of the man in miles per hour?

 Option A: 9.72 miles / hour

 Option B: 9.73 miles / hour

 Option C: 9.75 miles / hour

 Option D: 9.78 miles / hour

 Option E: 9.79 miles / hour

Answer: Option D


Question: Question: A train running at a speed of 36 kmph crosses an electric pole in 12 seconds. In how much time will it cross a 370 m long platform?

 Option A: 37 min

 Option B: 55 min

 Option C: 47 min

 Option D: 67 min

 Option E: 49 min

Answer: Option E


Question: Question: A primitive village follows a strange custom. They have babies only to have a boy. Whenever a boy is born in a family, they stop having babies and whenever a girl is born, they have a baby again and again till a boy is born.
The probability of having a boy is same as the probability of having a girl. What will be the proportion of boys to girls in the village after some time?

 Option A: 1:1

 Option B: 1:2

 Option C: 1:3

 Option D: 1:4

 Option E: 1:5

Answer:
Option A