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: Mr. Evans will states that each of his children will receive an equal share of his estate and that his grandchildren will split a portion of the estate that is equal to the share received by each of his children. If Mr. Evans has 4 children and 5 grandchildren, then approximately what percentage of Mr. Evans estate will each grandchild receive?

Option A: 20%

Option B: 17%

Option C: 4.0%

Option D: 3.3%

Option E: 2.8%
Option C

Question: If a committee of 2 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible?

Option A: 20

Option B: 40

Option C: 50

Option D: 80

Option E: 120
Option B

Question: If 25% of x is 15 less than 15% of 1500, then x is?

Option A: 872

Option B: 738

Option C: 837

Option D: 840

Option E: 83
Option D