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: Triangle STV has sides ST = TV = 26, and SV = 20. What is the area?

 Option A: 160

 Option B: 180

 Option C: 200

 Option D: 220

 Option E: 240

SOLUTION: Option E

PROBLEM: Question: an article with cost price of 180 is sold at 15% profit. what is the selling price?

 Option A: 198

 Option B: 200

 Option C: 204

 Option D: 207

 Option E: 210

SOLUTION: Option D

PROBLEM: Question: The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is?

 Option A: 7

 Option B: 6

 Option C: 5

 Option D: 1

 Option E: 41

SOLUTION:
Option B