instruction:
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:
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
answer:
Option A


question:
Question: A train sets off at 2 p.m. at the speed of 70 kmph. Another train starts at 3:30 p.m. in the same direction at the rate of 85 kmph. At what time the trains will meet?

 Option A: 10.36

 Option B: 10.39

 Option C: 10.3

 Option D: 10.34

 Option E: 10.31
answer:
Option C


question:
Question: If 7a = 8b and ab ≠0, what is the ratio of a/8 to b/7?

 Option A: 16/14

 Option B: 8/7

 Option C: 1

 Option D: 7/8

 Option E: 64/49
answer:

Option C