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.

[Q]: 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
[A]: Option D


[Q]: Question: If 5 ministers are to be seated at a round table conference, then how many different ways can they be seated?

 Option A: 240

 Option B: 60

 Option C: 24

 Option D: 720

 Option E: 180
[A]: Option C


[Q]: Question: If 20 men can build a wall 112 metres long in 6 days, what length of a similar wall can be built by 15 men in 3 days?

 Option A: 65mtr.

 Option B: 52mtr

 Option C: 70mtr.

 Option D: 78mtr.

 Option E: 42mtr.
[A]:
Option E