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: A, B and C started a business by investing Rs. 1,20,000, Rs. 1,35,000 and ,Rs.1,50,000 respectively. Find the share of each, out of an annual profit of Rs. 56,700.

 Option A: 16800;18900;21000

 Option B: 17800;19800;22500

 Option C: 15500;17600;20500

 Option D: 16400;17200;18900

 Option E: None of them
Option A

Question: If 5 ministers are to be seated at a round table conference, then how many different ways can they be seated?

 Option A: 240

 Option B: 60

 Option C: 24

 Option D: 720

 Option E: 180
Option C

Question: The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is:

 Option A: 70 km/hr

 Option B: 75 km/hr

 Option C: 84 km/hr

 Option D: 87.5 km/hr

 Option E: 88.5 km/hr

Option D