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: There r 4 prime numbers in ascending order. The multiplication of first 3 is 385 and that of last 3is 1001. what is the last number is

 Option A: 12

 Option B: 15

 Option C: 16

 Option D: 13

 Option E: 18
[A]: Option D


[Q]: Question: Find the number of square tiles to cover the floor of a room measuring 6 m * 11 m leaving 0.50 m space around the room. A side of square tile is given to be 50 cms?

 Option A: 187

 Option B: 476

 Option C: 200

 Option D: 208

 Option E: 276
[A]: Option C


[Q]: Question: What is the measure of the radius of the circle inscribed in a triangle whose sides measure 8, 15 and 27 units?

 Option A: 8.5 units

 Option B: 6 units

 Option C: 3 units

 Option D: 5 units

 Option E: 2 units
[A]:
Option E