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: How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?

 Option A: 12.5

 Option B: 12.1

 Option C: 12.9

 Option D: 12.7

 Option E: 12.2

SOLUTION: Option B

PROBLEM: Question: The number 46 can be written as the sum of the squares of 3 different positive integers. What is the sum of these 3 integers?

 Option A: 17

 Option B: 16

 Option C: 15

 Option D: 10

 Option E: 13

SOLUTION: Option D

PROBLEM: Question: The least number of complete years in which a sum of money put out at 20% C.I. will be more than doubled is?

 Option A: 3

 Option B: 4

 Option C: 9

 Option D: 3

 Option E: 5

SOLUTION:
Option B