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.

[Q]: Question: If seven machines working at the same rate can do 3/4 of a job in 30 minutes, how many minutes would it take two machines working at the same rate to do 3/5 of the job?

 Option A: 45

 Option B: 60

 Option C: 75

 Option D: 84

 Option E: 100
[A]: Option D


[Q]: Question: Q is as much younger than R as he is older than T. If the sum of the ages of R and T is 50 years, what is definitely the difference between R and Q's age?

 Option A: 23

 Option B: 28

 Option C: 25

 Option D: 19

 Option E: 11
[A]: Option C


[Q]: Question: On multiplying a number X by 153, the result obtained was 102325. However, it is found that both the 2's are wrong. Find the correct result.

 Option A: 104345

 Option B: 107375

 Option C: 108385

 Option D: 109395

 Option E: 105355
[A]:
Option D