TASK DEFINITION: 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.
PROBLEM: 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

SOLUTION: Option D

PROBLEM: Question: A bus takes 3 hours to cover a distance of 500 Km. how much should the speed in Kmph be maintained to cover the same direction in 5/3th of the previous time?

Option A: 75 Kmph

Option B: 100 Kmph

Option C: 90 Kmph

Option D: 65 Kmph

Option E: 70 Kmph

SOLUTION: Option B

PROBLEM: Question: A can do a half of certain work in 60 days and B one third of the same in 35 days. They together will do the whole work in.

Option A: 56 days

Option B: 420 days

Option C: 46 days

Option D: 560 days

Option E: 96 days

SOLUTION:
Option A