TASK DEFINITION: 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.
PROBLEM: Question: On dividing 21 by a number, the quotient is 10 and the remainder is 1. Find the divisor.

 Option A: 1

 Option B: 2

 Option C: 4

 Option D: 6

 Option E: 7

SOLUTION: Option B

PROBLEM: Question: A river 5m deep and 19 m wide is flowing at the rate of 4 kmph the amount of water that runs into the sea per minute is?

 Option A: 4500

 Option B: 6333

 Option C: 6576

 Option D: 6345

 Option E: 2882

SOLUTION: Option B

PROBLEM: Question: How many liters of water must be evaporated from 50 liters of a 3 percent sugar solution to get a 5 percent sugar solution?

 Option A: 2

 Option B: 4

 Option C: 6

 Option D: 10

 Option E: 20

SOLUTION:
Option E