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.

Question: If the perimeter of a rectangular garden is 600 m, its length when its breadth is 100 m is?

 Option A: 299 m

 Option B: 777 m

 Option C: 200 m

 Option D: 167 m

 Option E: 128 m
Option C

Question: The ratio of three numbers is 1:2:3 and their sum is 60. The second number of the three numbers is?

 Option A: 24

 Option B: 26

 Option C: 20

 Option D: 29

 Option E: 30
Option C

Question: Jonathan can type a 10 page document in 40 minutes, Susan can type it in 30 minutes, and Jack can type it in 24 minutes. Working together, how much time will it take them to type the same document?

 Option A: 5 minutes

 Option B: 10 minutes

 Option C: 15 minutes

 Option D: 18 minutes

 Option E: 20 minutes

Option B