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: One computer can upload 100 megabytes worth of data in 2 seconds. Two computers, including this one, working together, can upload 1300 megabytes worth of data in 10 seconds. How long would it take for the second computer, working on its own, to upload 100 megabytes of data?

Option A: 6.6

Option B: 7

Option C: 9

Option D: 11

Option E: 13
[EX A]: Option A

[EX Q]: Question: In a test, sixty percent students passed in Maths and 65% in History, 40% passed in both of these subjects. If 90 students failed in maths and history both, then what is the total number of students?

Option A: 600

Option B: 650

Option C: 700

Option D: 750

Option E: None of these
[EX A]: Option A

[EX Q]: Question: A squirrel runs up a cylindrical post , in a perfect spiral path making one circuit for each rise of 4 feet . How many feet does the squirrel travels if the post is 12 feet tall and 3 feet in circumference?

Option A: 9 feet

Option B: 12 feet

Option C: 13 feet

Option D: 15 feet

Option E: 18 feet
[EX A]:
Option A