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: If k and w are the dimensions of a rectangle that has area 21, and if k and w are integers such that k > w, what is the total number of possible values of k?

Option A: Two

Option B: Three

Option C: Four

Option D: Five

Option E: Six
answer:
Option A

question:
Question: The area of the square formed on the diagonal of a rectangle as its side is 108 1/3 % more than the area of the rectangle. If the perimeter of the rectangle is 28 units, find the difference between the sides of the rectangle?

Option A: 3m

Option B: 5m

Option C: 8m

Option D: 2m

Option E: 1m
answer:
Option D

question:
Question: In a mixture of 60 liters, the ratio of milk and water is 2:1. What amount of water must be added to make the ratio of milk and water as 1:2?

Option A: 20 liters

Option B: 30 liters

Option C: 60 liters

Option D: 29 liters

Option E: 82 liters
answer:
Option C