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: Which of the following is NOT a factor of 10! ?

 Option A: 1440

 Option B: 625

 Option C: 160

 Option D: 80

 Option E: 50
Option B

Question: Sixty percent of the members of a swim club have passed the lifesaving test. Among the members who have not passed the test, 12 have taken the preparatory course and 30 have not taken the course. How many members are there in the swim club?

 Option A:  60

 Option B:  80

 Option C:  100

 Option D:  120

 Option E:  140
Option E

Question: A car drove from Town A to Town B without stopping. The car traveled the first 80 miles of its journey at an average speed of 25 miles per hour. What was the car’s average speed, in miles per hour, for the remaining 80 miles if the car’s average speed for the entire trip was 40 miles per hour?

 Option A: 28

 Option B: 48

 Option C: 50

 Option D: 55

 Option E: 100

Option E