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: There are 14 stations between Hyderabad and Bangalore. How many second class tickets have to be printed, so that a passenger can travel from any station to any other station?

 Option A: 288

 Option B: 267

 Option C: 261

 Option D: 211

 Option E: 240

SOLUTION: Option E

PROBLEM: Question: In the arithmetic sequence t1, t2, t3, ..., tn, t1=23 and tn= tn-1 - 3 for each n > 1. What is the value of n when tn = 8?

 Option A: -1

 Option B: 6

 Option C: 10

 Option D: 14

 Option E: 20

SOLUTION: Option B

PROBLEM: Question: A student is ranked 6th from right and 5th from left. How many students are there in totality ?

 Option A: 10

 Option B: 19

 Option C: 20

 Option D: 21

 Option E: 22

SOLUTION:
Option A