instruction:
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: Two out of five employees are capable of doing a certain task. Sixty percent of the five employees, including the two who are capable, are assigned to a project involving this task. what percentage of employees assigned to the project are not capable?

 Option A: 43.33%

 Option B: 33.33%

 Option C: 13.33%

 Option D: 38.33%

 Option E: 23.33%
answer:
Option B


question:
Question: If integers a and b are distinct factors of 30, which of the following CANNOT be a factor of 30?
I. ab + b^2
II. (a + b)^2
III. a + b

 Option A: I only

 Option B: II only

 Option C: III only

 Option D: I and II only

 Option E: I, II, and III
answer:
Option B


question:
Question: A sum of money becomes triple itself in 5 years at simple interest. How many years will it become eight times at the same rate?

 Option A: 12 Â½ years

 Option B: 16 Â½ years

 Option C: 18 Â½ years

 Option D: 72 Â½ years

 Option E: 12 Â½ years
answer:

Option B