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.

[EX Q]: Question: In a school of 450 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?

 Option A: 72

 Option B: 75

 Option C: 80

 Option D: 81

 Option E: 90
[EX A]: Option D

[EX Q]: Question: If the average (arithmetic mean) of 18 consecutive odd integers is 414, then the least of these integers is

 Option A: a

 Option B: b

 Option C: c

 Option D: d

 Option E: e
[EX A]: Option A

[EX Q]: Question: Carol is Five times Alice’s age but only twice as old as Betty. Alice is twelve years younger than Carol. How old is Betty?

 Option A: 6

 Option B: 9

 Option C: 12

 Option D: 18

 Option E: 24
[EX A]:
Option A