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: A sequence contains y numbers of alternating positive and negative numbers, If the first number is postive and y is an even number, how many negative numbers are in it?

 Option A: (y+1

 Option B: (y-1

 Option C: y/(2+1

 Option D: y/(2-1

 Option E: y/2
[A]: Option E


[Q]: Question: Find the average of all the numbers between 11 and 36 which are divisible by 5

 Option A: 15

 Option B: 20

 Option C: 25

 Option D: 30

 Option E: 35
[A]: Option C


[Q]: Question: The price of sugar is increased by 5%. By how much percent should a home maker reduce her consumption of sugar to have no extra expenditure?

 Option A: (700/107

 Option B: (107/100

 Option C: (500/105

 Option D: (5/100

 Option E: (100/500
[A]:
Option C