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: A bike covers a certain distance at the speed of 67km/h in 8 hrs. If the bike was to cover the same distance in approximately 6 hrs, at what approximate speed should the bike travel?

 Option A: 89.33 km/h

 Option B: 85.34 km/h

 Option C: 87.67 km/h

 Option D: 90.25 km/h

 Option E: 90.64 km/h
[EX A]: Option A

[EX Q]: Question: A machine puts c caps on bottles in m minutes. How many seconds will it take to put caps on b bottles?

 Option A: 60bm/c

 Option B: bm/60c

 Option C: bc/60m

 Option D: 60b/cm

 Option E: b/60cm
[EX A]: Option A

[EX Q]: Question: Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number

 Option A: 5

 Option B: 15

 Option C: 7.5

 Option D: 4

 Option E: 3
[EX A]:
Option A