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: The compound ratio of 1:3, 3:2 and 4:5?

 Option A: 1:9

 Option B: 1:7

 Option C: 1:2

 Option D: 2:5

 Option E: 1:4
[EX A]: Option D

[EX Q]: Question: Sum of 19 odd numbers is?

 Option A: 341

 Option B: 351

 Option C: 361

 Option D: 371

 Option E: 381
[EX A]: Option C

[EX Q]: Question: Which of the following integers can be written as both the sum of 5 consecutive odd integers and 7 consecutive odd integers?

 Option A: 49

 Option B: 70

 Option C: 140

 Option D: 215

 Option E: 525
[EX A]:
Option E