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: From a Group of 10 People, Including George and Nina, 3 people are to be selected at random to work on a certain project. What is the probability that 3 people selected will include George but not Nina

 Option A: 5/56

 Option B: 9/56

 Option C: 28/120

 Option D: 21/56

 Option E: 25/56

Answer: Option C


Question: Question: At a local supermarket, a box of cereal usually costs 22 dollars. This week, the supermarket sells the box of cereal for 11 dollars. How much money will you save if you buy this cereal at this supermarket?

 Option A: 11 dollars

 Option B: 13 dollars

 Option C: 14 dollars

 Option D: 12 dollars

 Option E: 10 dollar

Answer: Option A


Question: Question: The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is?

 Option A: 6

 Option B: 8

 Option C: 1

 Option D: 5

 Option E: 2

Answer:
Option A