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.

[EX Q]: Question: In how many seconds will a train 100 meters long pass an oak tree, if the speed of the train is 36 km/hr?

 Option A: 6

 Option B: 8

 Option C: 10

 Option D: 12

 Option E: 14
[EX A]: Option C

[EX Q]: Question: Jamboree and GMAT Club Contest Starts
QUESTION #10:
How many words (with or without meaning)F can be formed using all the letters of the word “SELFIE” so that the two E’s are not together?

 Option A:  660

 Option B:  600

 Option C:  500

 Option D:  300

 Option E:  240
[EX A]: Option E

[EX Q]: Question: An investor bought a 1-year $8,000 certificate of deposit that paid interest at an annual rate of 10 percent compounded semiannually. What was the total amount of interest paid on this certificate at maturity?

 Option A: $400

 Option B: $440

 Option C: $720

 Option D: $800

 Option E: $820
[EX A]:
Option E