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: Car 'X' covers a distance of 385 kms in 7 hours and car 'Y' covers a distance of 715 kms in 13 hrs. What is the difference in the speed of the two cars?

Option A: 2kms/hr

Option B: 1km/hr

Option C: 3kms/hr

Option D: 5kms/hr

Option E: None of these
Option E

Question: A student missed 6% of the questions on a test. If the student missed 12 questions, how many questions were on the test?

Option A: 100

Option B: 150

Option C: 200

Option D: 250

Option E: 300
Option C

Question: A train has a length of 150 metres. It is passing a man who is moving at 22 km/hr in the same direction of the train, in 33 seconds. Find out the speed of the train.

Option A: 182 km/hr

Option B: 180 km/hr

Option C: 152 km/hr

Option D: 169 km/hr

Option E: 190 km/hr
Option A