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: In a kilometer race, A beats B by 54 meters or 12 seconds. What time does A take to complete the race?

 Option A: 212

 Option B: 190

 Option C: 277

 Option D: 181

 Option E: 122
[A]: Option A


[Q]: Question: What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?

 Option A: 5%

 Option B: 6%

 Option C: 2%

 Option D: 95%

 Option E: 1%
[A]: Option A


[Q]: Question: A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone. The volume of the cone so formed is:

 Option A: 12

 Option B: 66

 Option C: 73

 Option D: 72

 Option E: 8
[A]:
Option A