instruction:
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:
Question: The length of a room is 7 m and width is 4.75 m. What is the cost of paying the floor by slabs at the rate of Rs. 900 per sq. metre.

 Option A: 25650

 Option B: 25750

 Option C: 26550

 Option D: 26750

 Option E: 29925
answer:
Option E


question:
Question: A cab driver 5days income was $25, $50, $60, $65 , $70. Then his average income is?

 Option A: A

 Option B: B

 Option C: C

 Option D: D

 Option E: E
answer:
Option B


question:
Question: If x and y are integers such that (x+1)^2 is less than or equal to 9 and (y-1)^2 is less than 64, what is the sum of the maximum possible value of xy and the minimum possible value of xy?

 Option A:  -16

 Option B:  -8

 Option C:  0

 Option D:  14

 Option E:  16
answer:

Option B